都是分割，区别就是，split要用转移字符：
1.
$test = end(explode(‘.‘, ‘abc.txt‘));
echo $test;//output txt
2.
$test1 = end(split(‘.‘,‘abc.txt‘));
echo $test1;//no output
3.
$test1 = end(split(‘\.‘,‘abc.txt‘));
echo $test1;//output txt
php的explode()和split()的区别
原文：http://www.cnblogs.com/tommy-huang/p/4151703.html
