php如何截取逗号之前的字符

回复讨论(解决方案)

$email = 'name@example.com' ;
$domain = strstr ( $email , '@' );
echo $domain ; // 打印 @example.com

$user = strstr ( $email , '@' , true ); // 从 PHP 5.3.0 起
echo $user ; // 打印 name

$str='aaaaa,bbbbbbb,ccccc';if(strpos($str,',')){	preg_match('/([^,]+?),/i',$str,$match);}print_r($match[1]);/*aaaaa*/

$s = 'aaaaa,bbbbbbb,ccccc';echo strtok($s, ',');

$string = '111a,111';            $flag = strpos($string, ',');            if($flag !== FALSE){                $arr = explode(',', $string);                echo $arr[0];            }else{                echo $string;            }