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php入门学习知识点四 PHP正则表达式基本应用_PHP

WBOY
WBOYOriginal
2016-06-01 12:14:531011browse

正则表达式

复制代码 代码如下:
//正则表达 式
// ereg区分大小写
if(ereg("([A-Z]{3,})", "AAA")){
echo "大写能匹配!
";
}else{
echo "no";
}
if(ereg("([A-Z]{3,})", "aaa")){
echo "yes";
}else{
echo "小写不能匹配!
";
}
// eregi不区分大小写
if(eregi("([A-Z]{3,})","Aaaa")){
echo "大小写都可以匹配!";
}
//返回匹配的值
if(ereg("^(0[0-9]{2,3})-([0-9]{7,8})","0592-5337138",$regs)){
echo "返回值0下标为原串$regs[0]
";
echo "返回区号(即第一个匹配串)".$regs[1]."
";
echo("返回电话号码(即第二个匹配串)$regs[2]
");
}
?>

正则表达式30分钟入门教程
正则表达式 基础资料
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