substr(“字符串”，1，5)//获取1到5的字符
strrpos($email,”@”)//获取指定字符”@”最后出现的位置
strpos($email,’@’);//获取指定字符”@”最先出现的位置
strlen($email)//获取字符串的长度
<?php
$email=”wyg517@163.com”;
echo substr($email,strrpos($email,”@”), strlen($email));
//echo strlen($email);
?>
<?php
$str=’aaa#bbb#ccc#bbbb’;
echo “demo: “.$str.”<br/>”;
//根据#截取字符串
$strArr=explode(‘#’,$str);
echo “This is one: “.($strArr[0]);
echo “<br/>”;
echo “This is tow: “.($strArr[1]);
echo “<br/>”;
echo “This is three: “.($strArr[2]);
echo “<br/>”;
echo “This is four: “.($strArr[3]);
echo “<br/>”;
echo substr_count ( $str , ‘#’ ); //获取’#’出现的个数
?>
{jcomments on}