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spliti和ereg用新函数preg_split()，preg_match()怎么重写下面两句话

WBOY
WBOYOriginal
2016-06-23 13:29:271044browse

1，$sql=select * from huiyuan where id=1;
       list($sel, $sql) = spliti("FROM", $sql);


2，if (!ereg("^[0-9]+$",$id12) {$a=1;}


回复讨论(解决方案)

1、 

 list($sel, $sql) = preg_split("/FROM/i", $sql);

2、 
if (!preg_match("/^[0-9]+$/",$id12)) {$a=1;}

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