PHP递归调用数组值并用其执行指定函数的方法

本文实例讲述了PHP递归调用数组值并用其执行指定函数的方法。分享给大家供大家参考。具体分析如下：

以下为wordpress原代码，为了偷懒，简单修改一下以适用其它函数

    /**
    * Navigates through an array and removes slashes from the values.
    *
    * If an array is passed, the array_map() function causes a callback to pass the
    * value back to the function. The slashes from this value will removed.
    *
    * @since 2.0.0
    *
    * @param mixed $value The value to be stripped.
    * @return mixed Stripped value.
    */
    function stripslashes_deep($value) {
     if ( is_array($value) ) {
      $value = array_map('stripslashes_deep', $value);
     } elseif ( is_object($value) ) {
      $vars = get_object_vars( $value );
      foreach ($vars as $key=>$data) {
       $value->{$key} = stripslashes_deep( $data );
      }
     } elseif ( is_string( $value ) ) {
      $value = stripslashes($value);
     }
     return $value;
    }

代码如下：

    <?php 
    function function_deep($function,$value) {
      try {
        if(!function_exists($function)){
          $error = '"'.$function.'" is undefined';
          throw new Exception($error);
        }
      } catch (Exception $e) {
        echo 'Caught exception: ', $e->getMessage(), "\n";
        die();
      }
      if ( is_array($value) ) {
        $fun = Array();
        for($i=1;$i<=count($value);$i++){
          $fun[] = $function; 
        }
        $value = array_map("function_deep",$fun, $value);
      } elseif ( is_object($value) ) {
        $vars = get_object_vars( $value );
        foreach ($vars as $key=>$data) {
          $value->{$key} = function_deep($function,$data );
        }
      } elseif ( is_string( $value ) ) {
        $value = call_user_func($function,$value);
      }
      return $value;
    }
    $arr = array(
        "I'm bean",
        "I'm bean",
        array("I'm bean","I'm bean")
        );
    var_dump(function_deep("addslashes",$arr));
    // 输出结果
    // array (size=3)
    //  0 => string 'I\'m bean' (length=9)
    //  1 => string 'I\'m bean' (length=9)
    //  2 => 
    //   array (size=2)
    //    0 => string 'I\'m bean' (length=9)
    //    1 => string 'I\'m bean' (length=9) 
    ?>

希望本文所述对大家的php程序设计有所帮助。