我打开浏览器怎么显示的是源代码呢
<?php
$pattern = '[0-9]/';
$subject = 'weuyr3ui76as83s0ck9';
$m1 = $m2 =array();
preg_match($pattern,$subject,$m1);
preg_match_all($pattern,$subject,$m2)
show($m1);
echo '<hr />';
show($m2);
function show($var=null){
if(empty($var)){
echo 'null';
}elseif(is_array($var)||is_object($var)){
echo '<pre>';
print_r($var);
echo '</pre>';
}else{
echo $var
}
}
?>
