PHP使用递归算法无限遍历数组示例

<?php//无限遍历数组$a1 = array("a", "b", "c"); //一维数组$a2 = array(array(21, 3, 6), array("a", "b", "c")); //二维数组$a3 = array(array(array(5, 55), 4, 444), 2, 7, 6, 8, array("w", "d", array(3, 2, "a"), "s")); //多维不规则数组function fun($a) {  foreach ($a as $val) {    if (is_array($val)) { //如果键值是数组，则进行函数递归调用      fun($val);    } else { // 如果键值是数值，则进行输出      echo "$val<br />";    } //end if      } //end foreach  } //end fun//fun($a1);//fun($a2);fun($a3);?>

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