$email = '[email protected]' ;
$domain = strstr ( $email , '@' );
echo $domain ; // 打印 @example.com$user = strstr ( $email , '@' , true ); // 从 PHP 5.3.0 起
echo $user ; // 打印 name
$domain = strstr ( $email , '@' );
echo $domain ; // 打印 @example.com$user = strstr ( $email , '@' , true ); // 从 PHP 5.3.0 起
echo $user ; // 打印 name
if(strpos($str,',')){
preg_match('/([^,]+?),/i',$str,$match);
}print_r($match[1]);
/*
aaaaa
*/
echo strtok($s, ',');
$flag = strpos($string, ',');
if($flag !== FALSE){
$arr = explode(',', $string);
echo $arr[0];
}else{
echo $string;
}