数组元素反转array

    xiaoxiao2021-03-25  156

    array_reverse( array,preserve) 参数 描述 array 必需。规定数组。 preserve 可选。规定是否保留原始数组的键名。  可能的值: truefalse 程序实例:

    <?php $a=array("Volvo","XC90",array("BMW","Toyota")); $reverse=array_reverse($a); $preserve=array_reverse($a,true); print_r($a); print_r($reverse); print_r($preserve); ?>

    结果:

    Array ( [0] => Volvo [1] => XC90 [2] => Array ( [0] => BMW [1] => Toyota ) )

    Array ( [0] => Array ( [0] => BMW [1] => Toyota ) [1] => XC90 [2] => Volvo )

    Array ( [2] => Array ( [0] => BMW [1] => Toyota ) [1] => XC90 [0] => Volvo )

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