确定一个数组的维度
<?php function array_depth($array) { if(!is_array($array)) return 0; $max_depth = 1; foreach ($array as $value) { if (is_array($value)) { $depth = array_depth($value) + 1; if ($depth > $max_depth) { $max_depth = $depth; } } } return $max_depth; } $array = array(array( array(array(1, 2), 3, 4))); echo array_depth($array); ?> 输出:4
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