<?php
$regex = '(^([a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*|\0\\\\\0)$)';
$classes = [
'foo',
'foo\\bar',
'foo\\bar\\baz',
];
foreach ($classes as $class) {
var_dump(preg_match($regex, $class));
}
- Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 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
- int(1)
int(0)
int(0)
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected '[' in /in/80YSU on line 5
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected '[' in /in/80YSU on line 5
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/80YSU on line 5
Process exited with code 255.
preferences:
234.82 ms | 401 KiB | 312 Q