1.join() implode() 函数拆解数组为字符串
<?php $arr = array("hello", "world"); $str = join(",", $arr); //implode()函数相同效果 echo $str; // 输出 "hello,world" ?>
2.explode() 函数 指定字符分割字符串为数组
<?php $str = "hello,world"; $arr = explode(",", $str); var_demp($arr); // 输出 array{"hello","world"}?>
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