<?php
namespace {
define('true', false); // Notice: Constant true already defined
var_dump(true === false); //false
}
namespace Knp {
define('Knp\\true', false);
var_dump(true === false); // true in php5
}
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
- Warning: Constant true already defined in /in/ptaEf on line 4
bool(false)
bool(false)
- Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
- Notice: Constant true already defined in /in/ptaEf on line 4
bool(false)
bool(false)
- Output for 7.3.32 - 7.3.33
- bool(false)
bool(false)
- Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
- Notice: Constant true already defined in /in/ptaEf on line 4
bool(false)
bool(true)
preferences:
265.57 ms | 402 KiB | 378 Q