- var_dump: documentation ( source)
- preg_match: documentation ( source)
- explode: documentation ( source)
- array_filter: documentation ( source)
- trim: documentation ( source)
- mb_strtolower: documentation ( source)
<?php
$rules = [
'weekly_rate' => 'required, /^\d*\.\d+%?$/'
];
$_POST['weekly_rate'] = '0.012%';
function validate ($rule_bag, $input) {
$flag = true;
$error_bag = [];
foreach ($rule_bag as $item => $rules){
$rules = is_array($rules) ? $rules : array_filter(explode(',', $rules));
foreach($rules as $rule){
$rule = trim($rule);
switch(mb_strtolower(trim($rule))){
case 'required': {
if (!isset($input[$item]))
{
$flag = false;
!isset($error_bag[$item])?$error_bag[$item]=[]:null;
$error_bag[$item][] = $rule;
}
break;
}
default: {
if (isset($input[$item])){
try {
if (!preg_match($rule, $input[$item])){
$flag = false;
!isset($error_bag[$item])?$error_bag[$item]=[]:null;
!isset($error_bag[$item]['regex'])?$error_bag[$item]['regex']=[]:null;
$error_bag[$item]['regex'][] = $rule;
}
}
catch(Exception $e){
echo $e->getMessage();
}
}
}
}
}
}
return $flag ? $flag : $error_bag;
}
var_dump(validate($rules,$_POST));