<?php
$tests = array(
0,
'0.0',
'',
null,
);
foreach ($tests as $element) {
if (is_numeric($element)) {
echo "'{$element}' is numeric\n";
} else {
echo "'{$element}' is NOT numeric\n";
}
}
?>
- 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, 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 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 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 - 8.3.6
- '0' is numeric
'0.0' is numeric
'' is NOT numeric
'' is NOT numeric
preferences:
197.28 ms | 406 KiB | 356 Q