<?php
$str = "abc:def:hij";
$arr = explode(':',$str);
echo '<pre>';
echo '成功<br>';
var_dump($arr);
echo '</pre>';
$str = "abcdefhij";
$arr = explode(':',$str);
echo '<pre>';
echo 'no成功<br>';
var_dump($arr);
echo '</pre>';
浏览器输出结果：
成功
array(3) {
[0]=>
string(3) "abc"
[1]=>
string(3) "def"
[2]=>
string(3) "hij"
}
no成功
array(1) {
[0]=>
string(9) "abcdefhij"
}
