fallback_cb_raw_iterator_test.php

#!/usr/bin/php
<?php


function getAllDirectories( $base_dir, $list_hidden = false ) {
  $out = array();
  
  foreach ( new RecursiveIteratorIterator( new RecursiveDirectoryIterator( $base_dir ) ) as $path ) {
    // ****** Skip non-relevant files
    $filename = basename( $path );
    if ($list_hidden == false && substr( $filename, 0, 1 ) == '.' ) continue;
    //if ( $filename == '.' || $filename == '..') continue;
    
    $out []= $path;
  }
  
  return $out;
}


function checkAllFilesInArrayForRegexMatch( $array, $regex ) {
  $matches = array();
  
  foreach ( $array as $path ) {
    $matches = array_merge( $matches, checkFileForRegexMatch( $path, $regex ) );
  }
  
  return $matches;
}

function checkFileForRegexMatch( $path, $regex ) {
  $matches = array();
  $handle = fopen( $path, "r" );
  
  if ($handle) {
    while ( ( $line = fgets( $handle ) ) !== false ) {
      $line_matches = array();
      preg_match( $regex, $line, $line_matches );
      
      if ( count( $line_matches ) > 0 ) {
        $matches []= $line;
      }
    }
    fclose($handle);
  } else {
    echo "Error reading '$path'.";
  }
  
  return $matches;
}


// ****** RUN
$time_start = microtime();

$alldirs = getAlldirectories( '/home/wpcom/public_html/wp-content/themes/a8c' );
$matches = checkAllFilesInArrayForRegexMatch( $alldirs, '/fallback_cb/' );
print_r( $matches );

echo "\nTotal execution time: " . ( microtime() - $time_start ) . " seconds";