<?php
preg_match_all('~[\\\\a-z0-9_]~', 'a\\\\b', $matches);
print_r($matches);
preg_match_all('~[a-z0-9_\\\\]~', 'a\\\\b', $matches);
print_r($matches);
preg_match_all('~[\\d-z]~', 'a\\\\b', $matches);
print_r($matches);
preg_match_all('~[\\\\d-z]~', 'a\\\\b', $matches);
print_r($matches);
- Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- Array
(
[0] => Array
(
[0] => a
[1] => \
[2] => \
[3] => b
)
)
Array
(
[0] => Array
(
[0] => a
[1] => \
[2] => \
[3] => b
)
)
Warning: preg_match_all(): Compilation failed: invalid range in character class at offset 3 in /in/hBE88 on line 8
Array
(
[0] => Array
(
[0] => a
[1] => \
[2] => \
[3] => b
)
)
Array
(
[0] => Array
(
[0] => \
[1] => \
)
)
- Output for 7.1.25 - 7.1.30, 7.2.0 - 7.2.33
- Array
(
[0] => Array
(
[0] => a
[1] => \
[2] => \
[3] => b
)
)
Array
(
[0] => Array
(
[0] => a
[1] => \
[2] => \
[3] => b
)
)
Array
(
[0] => Array
(
)
)
Array
(
[0] => Array
(
[0] => \
[1] => \
)
)
preferences:
157.2 ms | 402 KiB | 164 Q