请教下thinkphp怎么控制输出
请问下thinkphp如何控制输出啊
比如我有一个数组哈$names = array("111111111111111111111","222222222222222222222","333333333333333333333");
{$vo}
我要控制这个VO值的长度怎么来做啊,不是Lenth的值哈,就是我想控制只取5个字符出来的意思。
请老师赐教!

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