php 将字符串按大写字母分隔成字符串数组

alert("createTechBook".split(/(?=[A-Z])/)) 谢了啊

<?php 
$str="abcDefGhi"; 
/* 
preg_match_all("/([a-zA-Z]{1}[a-z]*)?[^A-Z]/",$str,$array); 
*/ 
$array=preg_split("/(?=[A-Z])/",$str); 
print_r($array); 
?>

<?php 
$string = "createTechBook"; 
$arr = preg_split("/(?=[A-Z])/", $string); 
print_r($arr); 
?>

也可以