Search the whole hosting account for files containing specific string(s)

grep_string.php

<?php
	//Add the strings to search
	$strings = array(
		'_0xaae8',
	);

	//Exclude file extensions
	$extensions_ignore = array(
		'jpg',
		'png',
		'jpeg',
		'pdf',
		'gif',
	);

	//Go
	process_folder( './', $strings, $extensions_ignore );
	
	function process_folder( $folder, $strings, $extensions_ignore ) {
		echo '[ '.$folder.' ]<br/>';
		$dir = new DirectoryIterator( $folder );
		foreach ( $dir as $file ) {
			if ( substr( $file->getPathname(), -3 ) != '/..' && substr( $file->getPathname(), -2 ) != '/.' ) {
				if ( $file->isDir() ) {
					process_folder( $file->getPathname(), $strings, $extensions_ignore );
				} else {
					if ( !in_array( $file->getExtension(), $extensions_ignore ) ) {
						$content = file_get_contents( $file->getPathname() );
						foreach( $strings as $string ) {
							if ( strpos( $content, $string ) !== false ) {
								echo '<span style="color: #ff0000;">'.$file->getPathname().'</span><br/>';
							}
						}
					}
				}
			}
		}
	}