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Don't get in trouble, always use \n unless you want to open the file in a specific OS - if so, use the newline combination of that OS, and not the OS you're running PHP on (PHP_EOL). You can also use file_put_contents (): This is the best answer. more dynamic, and handles fopen (), fwrite (), fclose () by itself.
When you write a text file and want to insert a line break, you need to use the correct line-ending character(s) for your operating system. Unix based systems use \n as the line ending character, Windows based systems use \r\n as the line ending characters and Macintosh based systems (Mac OS Classic) used \r as the line ending character.
Definition and Usage. The fopen () function opens a file or URL. Note: When writing to a text file, be sure to use the correct line-ending character! Unix systems use \n, Windows systems use \r\n, and Macintosh systems use \r as the line ending character.
PHP Write to File - fwrite () The fwrite () function is used to write to a file. The first parameter of fwrite () contains the name of the file to write to and the second parameter is the string to be written. The example below writes a couple of names into a new file called "newfile.txt":
fwrite. (PHP 4, PHP 5, PHP 7, PHP 8) fwrite — Binary-safe file write. Description ¶. fwrite (resource $stream, string $data, ? int $length = null): int | false. fwrite () writes the contents of data to the file stream pointed to by stream. Parameters ¶. stream. A file system pointer resource that is typically created using fopen (). data.
To write to a file in PHP, you can use the fopen() function in write mode (w) and the fwrite() function. The fwrite() function takes two arguments: the file pointer returned by fopen() and the data you want to write to the file.
The solution was to do an fread() and explode the contents by PHP_EOL and do a foreach($lines as $line) so every line did not get duplicated. Here is the example code: $file=fopen("test.txt,"r"); $text=fread($file,filesize("test.txt")); $lines=explode(PHP_EOL,$text); foreach($lines as $line) {// Do something}
