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。
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