it should write correctly in specified line in the text file . How to get file name from a path in PHP ? Thanks for this. Replace string in file using PHP and preg_replace function 2.00/5 (1 vote) See more: PHP Hi i have a txt file and i want to use php to make some changes example. replace () function in PHP is a build-in function which is used to replace all the possible parameters that need to get replace in the given string therefore it has some working criteria that needs to be followed: Some mandatory function in PHP involves these parameters like search_val, replace_val, subject_val and count without which the . How to Encrypt and Decrypt a PHP String ? Add a new light switch in line with another switch? I followed your advice and it works great! yea that's right a poor man's streaming. . In this article, we are going to replace the String with another by using the PHP built-in str_replace() function. This is beautiful, something I've wanted to know for a long time! Find and Replace the First Occurrences of Text, Word, or String in File From our created test file, we are going to update all the instances of the word " LinuxShellTips " with the alternative " this site ". I return a string in that code. How do I replace all occurrences of a string in JavaScript? Press Ctrl+R or select Edit | Find | Replace from the main menu to open the Replace in File window. Get it a few lines at a time, dump the variable, get the next few lines. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. What's the \synctex primitive? The str_ireplace () function replaces some characters with some other characters in a string. I would have used 'sed' in a more explicit way, so you are less dependent of your system. Concentration bounds for martingales with adaptive Gaussian steps. -> so question upvoted too! #!/bin/bash read -p "Enter the file name : " file read -p "Enter the old word to be replaced : " old read -p "Enter the new word . To learn more, see our tips on writing great answers. Asking for help, clarification, or responding to other answers. The str_replace() function is a case-sensitive, built-in function of PHP which replaces some character of the string with other characters.It is used to replace all the occurrences of the search string with the replacement string. But why does using the three square brackets work? I know what I have done is (clearly) not right, but I am struggling to find a solution (in layman terms). PHP. replace string in file - PHP home > topics > php > questions > replace string in file Join Bytes to post your question to a community of 471,620 software developers and data experts. no, don't include for this. How to find all files containing specific text (string) on Linux? It's far more secure, compatible and reusable. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. include is executing php code. By using our site, you I'm going to give it to our JDT (Joke Development Team) and get back to you in 6 to 8 weeks. rev2022.12.11.43106. Thanks to your comments. Actually it looks like it should be sprintf('%s', $$varname). How to Get $_POST from multiple check-boxes ? help me. How to Convert JSON file into CSV in PHP ? How to check foreach Loop Key Value in PHP ? Why do we use perturbative series if they don't converge? Don't think so, you should include the file and then call the function that's returning your string. How to convert first character of all the words uppercase using PHP ? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How to get last 1000 lines from a large file then remove them? The str_replace () is a built-in function in PHP and is used to replace all the occurrences of the search string or array of search strings by replacement string or array of replacement strings in the given string or array respectively. This method has a problem if the string you're looking to replace is longer than a single character. Thanks for contributing an answer to Stack Overflow! Michael Zippo. PHP gives you a couple of useful functions for replacing text in a string: str_replace()searches for one string of text and replaces it with another. *" and replace it with "$". php str_replace substr replace replace value with searched value php; str_replace php all occurrences; replace character in string php; php regex replace; php replace specific characters in string; replace character only php; replaceall php; php str_ireplace; php replace only first occurrence; php regex replace accented characters; number . Mathematica cannot find square roots of some matrices? How do I break a string in YAML over multiple lines? $contactStr = include 'templates/contact.php'; $contactStr = str_replace (" { {newsletter}}",$newsletterStr,$contactStr); However, it's not replacing the string. How do I check if a string contains a specific word? I am building a small program that will allow my students to subscribe and PHP String str_replace() function. Using str_replace() with an array and a count variable: Using str_replace() with fewer elements in replace than find: Get certifiedby completinga course today! Did neanderthals need vitamin C from the diet? Search the string "Hello World!", find the value "world" and replace it with "Peter": Hello Peter! Why do we use perturbative series if they don't converge? PSE Advent Calendar 2022 (Day 11): The other side of Christmas. PHP. If you aren't required to use PHP, I would highly recommend performing stuff like this from the command line. Tutorials, references, and examples are constantly reviewed to avoid errors, but we cannot warrant full correctness of all content. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Use output_buffers together with PHP-variables. Asking for help, clarification, or responding to other answers. Expressing the frequency response in a more 'compact' form, MOSFET is getting very hot at high frequency PWM, Disconnect vertical tab connector from PCB. PHP | Type Casting and Conversion of an Object to an Object of other class. How to get last day of a month from date in PHP ? Expressing the frequency response in a more 'compact' form. I know this is too old.. but haw can I try to use sed to replace Ø to . How to extract Numbers From a String in PHP ? Thanks for contributing an answer to Stack Overflow! Searching and replacing with str_replace() This is what I have so far, but I don't see any changes in the text file besides extra white spaces. It works because $newsletter outside and inside the template are in the same scope. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, Replace several texts in PHP include function, Using PHP as Template Engine and having a thin Template, startsWith() and endsWith() functions in PHP. rtrim PHP. If he had met some scary fish, he would immediately return to the surface, Expressing the frequency response in a more 'compact' form. In the United States, must state courts follow rulings by federal courts of appeals? Does a 120cc engine burn 120cc of fuel a minute? Click for a multi-line replace. Can a prospective pilot be negated their certification because of too big/small hands? It's quite possible that the string could span multiple chunks of data, causing you to skip the replacement. Agreed, this is something for the command line, not PHP. How to replace a word inside a string in PHP ? rtrim$ string$ charlist. (A concatenation of several XML files). . An array of patterns and a replacement string. How to Remove Special Character from String in PHP ? if(file_exists($file)){ makes it very, very bad. CGAC2022 Day 10: Help Santa sort presents! I have a web page presenting data from my MySQL database. In the top field, enter your search string. Read on to discover how to use these 2 useful PHP functions. I am using PHP4.3.3 on a windows XP platform. The preg_replace () function is searches the string pattern in the file and if string pattern found then it replace with the required string. One pattern and a replacement string. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Is it necessary to use PHP? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. substr_replace()replaces text at a specified position within a string. Does aliquot matter for final concentration? How to check a key exists in an array in PHP ? However, the method compares the case of the mentioned strings. Received a 'behavior reminder' from manager. Replace string in text file using PHP; Replace string in text file using PHP. You can use PHP as template engine. rev2022.12.11.43106. You can take the value of the include call as you would for a normal function. Example 1: The following code replaces the string with another string. Can virent/viret mean "green" in an adjectival sense? Search for jobs related to Php replace string in file or hire on the world's largest freelancing marketplace with 22m+ jobs. We can replace the string with other by using PHP str_replace(). This tutorial on Replace string in text file using PHP. Ready to optimize your JavaScript with Rust? This function works by the following rules: If the string to be searched is an array, it returns an array If the string to be searched is an array, find and replace is performed with every array element Making statements based on opinion; back them up with references or personal experience. In FSX's Learning Center, PP, Lesson 4 (Taught by Rod Machado), how does Rod calculate the figures, "24" and "48" seconds in the Downwind Leg section? Deleting all files from a folder using PHP. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Here PHP str_replace Function | Complete Guide you can learn a complete guide with different examples. How to convert a Date into Timestamp using PHP ? Replace special characters in a string with underscore (_) in JavaScript. Connect and share knowledge within a single location that is structured and easy to search. Finally the replacement with str_replace function works for two square brackets. How to Insert JSON data into MySQL database using PHP ? How to check if mod_rewrite is enabled in PHP ? Use this for better readability: https://www.php.net/manual/en/control-structures.alternative-syntax.php, This is a code i'm using for templating, should do the trick. How to get Time Difference in Minutes in PHP ? The best thing about it: You can use conditional statements and loops (full PHP) in your template right away. php file text replace. A variable that counts the number of replacements, Returns a string or an array with the replaced values, If the string to be searched is an array, it returns an array, If the string to be searched is an array, find and replace is performed with every array element, If both find and replace are arrays, and replace has fewer elements than find, an empty string will be used as replace, If find is an array and replace is a string, the replace string will be used for every find value. The tricky part is going to be writing back to the file. Can several CRTs be wired in parallel to one oscilloscope circuit? Reference What does this symbol mean in PHP? How to delete an Element From an Array in PHP ? Do non-Segwit nodes reject Segwit transactions with invalid signature? @Pedroski: Hello dear fellow! PHP replace/update a line in large text file. How to print all the values of an array in PHP ? In the template file it's just echo'd out. confusion between a half wave and a centre tapped full wave rectifier, Connecting three parallel LED strips to the same power supply, Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup). How to display logged in user information in PHP ? Did the apostolic or early church fathers acknowledge Papal infallibility? with "Peter": The str_replace() function replaces some characters with some other characters in a string. Ready to optimize your JavaScript with Rust? There are softwares already that helps to replace a string in a file. I need this. Should I give a brutally honest feedback on course evaluations? How to Create a Folder if It Doesnt Exist in PHP ? The str_replace () function replaces some characters with some other characters in a string. How do I check whether a file exists without exceptions? replace string in file Niels Bosboom Hi! These use cases are the reason, @IMSoP in his example it was no user input, but a raw string from the file. While using W3Schools, you agree to have read and accepted our, Required. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. Not the answer you're looking for? No need for {{newsletter}} constructs. This function works by the following rules: Note: This function is case-sensitive. Not the answer you're looking for? Find centralized, trusted content and collaborate around the technologies you use most. How to replace a string by another string in AngularJS ? php replace string within string . Thanks, I ask because I don't really understand this stuff. Replace the search string in a file. Find the data you need here. You are going to want to make sure that is correct (haven't tested). Suppose, if you're making a program that requires saving some data in to a file. it remains blank. PHP | Second most frequent element in an array, Sort array of objects by object fields in PHP, PHP | Sort array of strings in natural and standard orders, How to use php serialize() and unserialize() Function, PHP | Merging two or more arrays using array_merge(), PHP program to print an arithmetic progression series using inbuilt functions. PHP : How to Replace some text from n th line to m th line from file? How to Secure hash and salt for PHP passwords ? How to globally replace a forward slash in a JavaScript string ? Either would work, but using passthru, you can get the entire output. 121,985 Solution 1. Tabularray table when is wraped by a tcolorbox spreads inside right margin overrides page borders. Replace the characters "world" in the string "Hello world!" If you have access to the command line, you could use the. How to properly Format a Number With Leading Zeros in PHP ? ", https://www.php.net/manual/en/control-structures.alternative-syntax.php. How to remove white spaces only beginning/end of a string using PHP ? Where there is the word 'flag', I want the image of the flag to replace it. It's something small im missing explode, implodes are slower than a simple str_replace: May I ask why you use explode, implode? case-insensitive search. Ready to optimize your JavaScript with Rust? Something can be done or not a fit? I've made a function that give an error message when it happens: This works like a charm, fast and accurate: // never forget about EXPLODE when it comes about string parsing Syntax : str_replace ( $searchVal, $replaceVal, $subjectVal, $count ) App: PHP Search and Replace . If it's yes, replace the string in the entire file, else input the start and end lines of the file where the string needs to be replaced. In FSX's Learning Center, PP, Lesson 4 (Taught by Rod Machado), how does Rod calculate the figures, "24" and "48" seconds in the Downwind Leg section? To search and replace tag values in XML files using PHP, we use the PHP string replace function str_replace (). Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? Where is it documented? @Gustav it's as secure as including a file in this context. There is no user input involved and the script would have been just as eval'd in an include. It was kind of a joke. How do I arrange multiple quotations (each with multiple lines) vertically (with a line through the center) so that they're side-by-side? So when you use three square brackets around your variable, the innermost square bracket is dedicated to the interpolation of the variables, to display their values: This {{{$field}}} turns into this {{field}}. We can replace the string with other by using PHP str_replace (). MOSFET is getting very hot at high frequency PWM. Examples might be simplified to improve reading and learning. Is there a good solution to this? This was simply my way of thinking. "Notice: Undefined variable", "Notice: Undefined index", "Warning: Undefined array key", and "Notice: Undefined offset" using PHP. How to convert DateTime to String using PHP ? If you want to protect the included file from variable pollution (, Maybe I am wrong, but as far as I understand this example you are just overwriting the variable. maybe a bit late, but I was looking something like this. Note - An alternative way to do the substitution is to use the commented syntax. acknowledge that you have read and understood our, Data Structure & Algorithm Classes (Live), Full Stack Development with React & Node JS (Live), Fundamentals of Java Collection Framework, Full Stack Development with React & Node JS(Live), GATE CS Original Papers and Official Keys, ISRO CS Original Papers and Official Keys, ISRO CS Syllabus for Scientist/Engineer Exam. How can I fix it? If you need to preserve the case, click located in the replace field. To learn more, see our tips on writing great answers. Reference What does this symbol mean in PHP? Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content, How to parse an xml file with multiple xml declaration using PHP? How to Convert XML data into JSON using PHP ? A-143, 9th Floor, Sovereign Corporate Tower, We use cookies to ensure you have the best browsing experience on our website. Not the answer you're looking for? One should never suppress errors. If you don't need fancy replacing rules (like regular expressions), you should use this function instead of preg_replace () . How to extract extension from a filename using PHP ? Syntax: preg_replace ( $pattern, $replacement, $subject); Parameters: $pattern: It contains the string we have to replace. How to get names of all the subfolders and files present in a directory using PHP. Central limit theorem replacing radical n with n. Why does my stock Samsung Galaxy phone/tablet lack some features compared to other Samsung Galaxy models? I need to open a text file and replace a string. So if you wanted you could search for the string ". We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Does including a file trigger the return inside of the page ? Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. There are three different ways to use this function: 1. How do I make the first letter of a string uppercase in JavaScript? Making statements based on opinion; back them up with references or personal experience. How to replace a character by a newline in Vim. PHP Check if two arrays contain same elements, Merge two arrays keeping original keys in PHP, PHP program to find the maximum and the minimum in array. The problem is that include does not return the file content, and easier solution could be to use file_get_contents function. Why is the eastern United States green if the wind moves from west to east? If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: W3Schools is optimized for learning and training. (and eval can not be disabled with vanilla php, it requires an extra extension), @Gustav he is using eval to evaluate a script he loaded externally. I am trying to do a string replace for entire file in PHP. public function fileReplaceContent ($path, $oldContent, $newContent) { $str = file_get_contents ($path); $str = str_replace ($oldContent, $newContent, $str); file_put_contents ($path, $str); } Using fileReplaceContent ('your file path','string you want to change', 'new string') Share Follow answered Sep 12, 2021 at 21:49 Rachid Loukili 434 5 12 Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Is the EU Border Guard Agency able to tell Russian passports issued in Ukraine or Georgia from the legitimate ones? How to replace multiple characters in a string in PHP ? PHP | Change strings in an array to uppercase. Where is it documented? Data Structures & Algorithms- Self Paced Course. By default the square brackets allow you to insert a variable inside a string. How to replace all occurrences of a string using Vue.js filters ? To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Find centralized, trusted content and collaborate around the technologies you use most. This short class is very sweet! in that case how i should replace a string in specified location in the line. Example 3: The following code replaces the string with integers. Say you output a variable $newsletter in your template file. Also, it's possible to return values from included files. Exact replacing a string (a sentence or a word) in a long file, Replace path string in a config file using PHP. How do I replace all occurrences of a string in JavaScript? php str_replace function replace string data with in loop in php php replace as string with another php text replace get specific text in string then replace php str replace in php remplace string in php replacing in substring in php replacing in sub string in php php replace substring with another php replace in string str replace html php Example 2: The following code replaces the string with empty. PHP replace string after using file_get_contents - Stack Overflow PHP replace string after using file_get_contents Asked 9 years, 10 months ago Modified 9 years, 10 months ago Viewed 16k times 1 Hi I am looking to replace words in an html email I am loading via file_get_contents Here is my code: Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. All I know is: it woks, and speed doesn't matter to me! array|string $replace, string|array $subject, int &$count = null ): string|array This function returns a string or an array with all occurrences of search in subject replaced with the given replace value. First, we'll replace the string in the entire file, as a yes/no question. To replace the variables do the following: In this way you can build your own template engine. Why shouldn't I use mysql_* functions in PHP? Matches any of the patterns are replaced with the replacement string. Does this work: Parameters I'm just wondering, Why you didn't just use str_replace() ??? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. For text files the class can search for a given text and replace it with a given replacement string. // it's a powerful and fast tool. Can we keep alcoholic beverages indefinitely? How to display string values within a table using PHP ? How to add 24 hours to a unix timestamp in php? By "adding", the program is actually replacing a word. Connect and share knowledge within a single location that is structured and easy to search. How to check if a String Contains a Substring in PHP ? PHP String Replace with multiple instances of the search string. Use the str_ireplace() function to perform a Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. 2. QGIS expression not working in categorized symbology. I explicitly wrote {{newsletter}} and then in my method I did the following: However, it's not replacing the string. Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? Is it appropriate to ignore emails from a student asking obvious questions? The string remains unmodified in case the old string is not found with any matchings. How to convert PHP array to JavaScript or JSON ? The sed command offers a quick, easy, and timeless approach in finding and replacing targeted text, words, or string patterns in a file. I'm including a file in one of my class methods, and in that file has html + php code. How to generate simple random password from a given string using PHP ? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. str_replace ($oldString, $newString, $string) Parameters: Str_Replace Function With Multiple Replacements & Searches. it should not occupy the other rows. In the bottom field, enter your replacement string. How to check whether a string contains a substring in JavaScript? exec only returns the last line of the output. i2c_arm bus initialization and device-tree overlay. Connect and share knowledge within a single location that is structured and easy to search. The rubber protection cover does not pass through the hole in the rim. So, how do I implement the string replacement method? Does a 120cc engine burn 120cc of fuel a minute? Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? We provide programming data of 20 most popular languages, hope to help you! Making statements based on opinion; back them up with references or personal experience. "It is possible to execute a return statement inside an included file in order to terminate processing in that file and return to the script which called it. This is a PHP built-in function which majorly used to replace a specific string with another string. How to get the current Date and Time in PHP ? It's by far the best tool for the job, and much easier to use. Would it be possible, given current technology, ten years, and an infinite amount of money, to construct a 7,000 foot (2200 meter) aircraft carrier? su bstring is the string present in the original string that should be replaced replaced_string is the new string that replaces the substring. my doubt is if i delete the line in the text file. Why is Singapore currently considered to be a dictatorial regime and a multi-party democracy by different publications? 3. it's not that easy to use passthru to call sed, see my answer for details. Syntax: str_replace (substring,new_replaced_string,original_string); We need to provide three parameters. The only reason I'm doing this is because when I try to pass the variable to the included file it doesn't seem to recognize it. How to replace text inside a PHP Document? the $msgid has a value that needs to be placed in the style id attribute.. How to replace all dots in a string using JavaScript? @LeonKramer no, $newsletter will not get overwritten. How do I replace all occurrences of a string in JavaScript? By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. How to replace a word in a file with a hyperlink in PHP? Why does the USA not have a constitutional court? How to pass form variables from one page to other page in PHP ? still not i dont know why the html is not writing. rev2022.12.11.43106. What is the difference between String and string in C#? How to perform Array Delete by Value Not Key in PHP ? For example . Is energy "equal" to the curvature of spacetime? Asking for help, clarification, or responding to other answers. Why do quantum objects slow down when volume increases? Specifies the string to be searched, Optional. What's the \synctex primitive? The first idea that pops into my mind is do the string replace, write the new content to another file, and then at the end, delete the old file and replace it with the new one. By this tutorial we will learn how to get text file content then replace some strings then put the co. delete a line and replace with new text in a txt file, How to replace a character by a newline in Vim. How to replace a text in a string with another text using PHP ? This example below uses str_replace() function to replace any instance of the words 'Monday', 'Tuesday' or 'Wednesday' with different days 'Friday', 'Saturday', and 'Sunday' in the original string . Should I give a brutally honest feedback on course evaluations? php by My file is over 100MB so I have to go line by line and can not use file_get_contents(). This function works by the following rules: If the string to be searched is an array, it returns an array If the string to be searched is an array, find and replace is performed with every array element When would I give a checkpoint to my D&D party that they can return to if they die? What I have tried: Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, Make sure you have write permissions on the msghistory.txt file, taken that out thanks, I do have writing permissions. How to get the last character of a string in PHP ? How to find out where a function is defined using PHP ? : var = "Test need to change" I want to find string Test and change the rest of sentence when finish it sould be var = "Test changed text". At what point in the prequels is it revealed that Palpatine is Darth Sidious? That effectively how it would work if you did it on the command line: cat file | sed 's/replace/something/g' > output.file, I would run a php script that called the command line function -- then printed out the output file :). How do I put three reasons together in a sentence? How to edit the variables of a php file with another php file. How to upload images in MySQL using PHP PDO ? How to convert uppercase string to lowercase using PHP ? You aren't acting on user input. Approach 1: Using str_replace () method - The str_replace () method is used to replace a text in the string with another string. Why shouldn't I use mysql_* functions in PHP? Not sure if it was just me or something she sent to the whole team, Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup). The first idea that pops into my mind is do the string replace, write the new content to another file, and then at the end, delete the old file and replace it with the new one. whether it is possible. How to use cURL to Get JSON Data and Decode JSON Data in PHP ? The following function search and replace a string in a file without interpreting the searched string as a regular expression. <?php //str_replace("Original Value", "Value to be replaced", "String"); $result = str_replace("1", "2", "This is number 1"); // Output: This is number 2 ?> and it's return value is the value the included file returns - or if there is no return: 1. <?php //str_replace("Original Value", "Value to be replaced", "String"); $result = str_replace("1", "2", "This is number 1"); // Output: This is number 2 ?> How can I use a VPN to access a Russian website that is banned in the EU? A Computer Science portal for geeks. Share Improve this answer Follow edited Jan 29, 2010 at 0:32 An array of patterns and an array of replacement strings. It can traverse a given directory recursively and find files that match a given MIME type, or file name extension, or a regular expression. I admit that str_replace() could be faster. Reference What does this symbol mean in PHP? In any case, the sed (Stream Editor) command is what you are looking for: If you need this to perform dynamically within PHP, you can use passthru(): If you can't use directly sed from command line because it's a dynamic task and you need to call it from php it's difficult to get the syntax right: you must escape in different ways in the search and replacement strings these characters. This is the file where we are going to replace the word : The files found and replaced are returned as an array of path to the files. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How to get the time of the last modification of the current page in PHP? The tricky part is going to be writing back to the file. How do you parse and process HTML/XML in PHP? You can read the file's content with file_get_contents, perform the replace with str_replace and put the modified data back with file_put_contents: file_put_contents ($file, str_replace ("\nH", "H", file_get_contents ($file))); Share Follow answered Sep 17, 2009 at 12:32 Gumbo 632k 107 768 838 4 Sort a multidimensional array by date element in PHP, Convert timestamp to readable date/time in PHP, PHP | Number of week days between two dates, PHP | Converting string to Date and DateTime. In simple words it can modify the contents of a file. The only reason I'm doing this is because when I try to pass the variable to the included file it doesn't seem to recognize it. It's free to sign up and bid on jobs. Program to Insert new item in array on any position in PHP. micro-optimization.com/str_replace-vs-implode-explode.html. How could my characters be tricked into thinking they are on Mars? To learn more, see our tips on writing great answers. How to find and replace text in text file using php? i have query, i want to replace a string in text file. How to insert an item at the beginning of an array in PHP ? Find centralized, trusted content and collaborate around the technologies you use most. Typically I like solutions with pure php but I think in this case 'my case'. Accepted answer is great, php code in the template! How to log errors and warnings into a file in php? Web Scraping in PHP Using Simple HTML DOM Parser. How to create default function parameter in PHP? How do I include a JavaScript file in another JavaScript file? How to count rows in MySQL table in PHP ? Return all dates between two dates in an array in PHP. See the library on PHP Documentation. Matches of the pattern are replaced with the replacement string. How to extract the user name from the email ID using PHP ? Specifies the value to replace the value in, Required. Let's see how it's done in PHP & Python. Removing Array Element and Re-Indexing in PHP. I don't know why it would have been funny. Thanks for contributing an answer to Stack Overflow! Wow. See the library on PHP Documentation. Okay, got it now. How to create a string by joining the array elements using PHP ? "php replace string in text file" Code Answer. 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