<?php
$vars = [
'TRUE' => TRUE,
'FALSE' => FALSE,
'1' => 1,
'0' => 0,
'-1' => -1,
'"1"' => "1",
'"0"' => "0",
'"-1"' => "-1",
'NULL' => NULL,
'array()' => array(),
'"php"' => "php",
'""' => "",
];
foreach ($vars as $label => $var) {
$result = (!$var === empty($var)) ? 'TRUE' : 'FALSE';
echo sprintf("%s: %s\n", $label, $result);
}
- Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6
- TRUE: TRUE
FALSE: TRUE
1: TRUE
0: TRUE
-1: TRUE
"1": TRUE
"0": TRUE
"-1": TRUE
NULL: TRUE
array(): TRUE
"php": TRUE
"": TRUE
- Output for 8.3.5
- Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
TRUE: TRUE
FALSE: TRUE
1: TRUE
0: TRUE
-1: TRUE
"1": TRUE
"0": TRUE
"-1": TRUE
NULL: TRUE
array(): TRUE
"php": TRUE
"": TRUE
preferences:
133.72 ms | 402 KiB | 189 Q