php里array_work用法实例分析

本文实例讲述了php里array_work用法。分享给大家供大家参考。具体如下：

    // the test array 
    $array = array(
      'php', 'arrays', 'are', 'cool'  
    );
    // some variable for testing:
    $some_var = 'NEW';
    // the function that get's called for each entry
    function format_array_values(&$item, $key, $some_var) {
      $item = $some_var . ": $item (KEY: $key)<br/>";
    }
    // "walk" trough each array item and call the function:
    // "format_array_values"
    array_walk($array, 'format_array_values', $some_var);
    // print the result:
    print_r($array);
    /*
    The output will be:
    Array
    (
      [0] => NEW: php (KEY: 0)<br/>
      [1] => NEW: arrays (KEY: 1)<br/>
      [2] => NEW: are (KEY: 2)<br/>
      [3] => NEW: cool (KEY: 3)<br/>
    )
    */

希望本文所述对大家的php程序设计有所帮助。