<?php
$formData = array();
echo 'empty($formData[chain_id]): ';
var_dump(empty($formData['chain_id']));
echo "\n";
echo '$formData[chain_id] === \'0\': ';
var_dump($formData['chain_id'] === '0');
echo "\n";
$formData['chain_id'] = 0;
echo 'empty($formData[chain_id]): ';
var_dump(empty($formData['chain_id']));
echo "\n";
echo '$formData[chain_id] === \'0\': ';
var_dump($formData['chain_id'] === '0');
echo "\n";
$formData['chain_id'] = 1;
echo 'empty($formData[chain_id]): ';
var_dump(empty($formData['chain_id']));
echo "\n";
echo '$formData[chain_id] === \'0\': ';
var_dump($formData['chain_id'] === '0');
echo "\n";
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0':
Warning: Undefined array key "chain_id" in /in/B89FO on line 8
bool(false)
empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0': bool(false)
empty($formData[chain_id]): bool(false)
$formData[chain_id] === '0': bool(false)
- Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
- empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0':
Notice: Undefined index: chain_id in /in/B89FO on line 8
bool(false)
empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0': bool(false)
empty($formData[chain_id]): bool(false)
$formData[chain_id] === '0': bool(false)
- Output for 7.3.32 - 7.3.33
- empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0': bool(false)
empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0': bool(false)
empty($formData[chain_id]): bool(false)
$formData[chain_id] === '0': bool(false)
- Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
- empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0':
Notice: Undefined index: chain_id in /in/B89FO on line 8
bool(false)
empty($formData[chain_id]): bool(true)
$formData[chain_id] === '0': bool(false)
empty($formData[chain_id]): bool(false)
$formData[chain_id] === '0': bool(false)
preferences:
274.76 ms | 403 KiB | 385 Q