<?php
$tests = [
'Test',
'test',
'test1',
'1test',
'test!'
];
foreach ($tests as $test) {
echo "$test: " , (ctype_lower($test) ? 'true' : 'false') , "\n";
}
- Output for 7.1.25 - 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 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
- Test: false
test: true
test1: false
1test: false
test!: false
preferences:
114.1 ms | 407 KiB | 5 Q