How can PHP scripts be used to search and replace specific patterns in multiple files within a directory?

To search and replace specific patterns in multiple files within a directory using PHP scripts, you can use the RecursiveDirectoryIterator and RecursiveIteratorIterator classes to iterate through all files in the directory. Then, you can read the contents of each file, perform the search and replace operation using regular expressions, and write the modified content back to the file. 

<?php
$directory = 'path/to/directory';
$search = 'pattern_to_search';
$replace = 'replacement_pattern';

$iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator($directory));

foreach ($iterator as $file) {
    if ($file->isFile()) {
        $content = file_get_contents($file->getPathname());
        $modified_content = preg_replace('/' . $search . '/', $replace, $content);
        file_put_contents($file->getPathname(), $modified_content);
    }
}
?>

Keywords

PHP search and replace patterns directory files

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