<?php
$valid = array(1,2,3);
$post = array('1','f','3', '3');
if(is_array($post)){
$post = array_unique($post);
foreach($post as $key => $value){
if(in_array($value, $valid)){
$class = true;
}else{
unset($post[$key]);
}
}
}
if(isset($class)){
echo 'class="class' . implode(' class', $post) . '"';
}
PD9waHAKJHZhbGlkID0gYXJyYXkoMSwyLDMpOwokcG9zdCA9IGFycmF5KCcxJywnZicsJzMnLCAnMycpOwppZihpc19hcnJheSgkcG9zdCkpewogICAgJHBvc3QgPSBhcnJheV91bmlxdWUoJHBvc3QpOwogICAgZm9yZWFjaCgkcG9zdCBhcyAka2V5ID0+ICR2YWx1ZSl7CiAgICAgICAgaWYoaW5fYXJyYXkoJHZhbHVlLCAkdmFsaWQpKXsKICAgICAgICAgICAgJGNsYXNzID0gdHJ1ZTsKICAgICAgICB9ZWxzZXsKICAgICAgICAgICAgdW5zZXQoJHBvc3RbJGtleV0pOwogICAgICAgIH0KICAgIH0KfQppZihpc3NldCgkY2xhc3MpKXsKICAgIGVjaG8gJ2NsYXNzPSJjbGFzcycgLiBpbXBsb2RlKCcgY2xhc3MnLCAkcG9zdCkgLiAnIic7Cn0=
Standard input is empty
language:
PHP (php 7.3.5)
created:
12 years ago
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