<?php
var_dump(preg_match('/^/', 'foo', $m));
var_dump($m);
var_dump(preg_match('/\s*/', 'foo', $m));
var_dump($m);
var_dump(preg_match('/\w+/', 'foo', $m));
var_dump($m);
var_dump(preg_match('/$/', 'foo', $m));
var_dump($m);
- Output for 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 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
- int(1)
array(1) {
[0]=>
string(0) ""
}
int(1)
array(1) {
[0]=>
string(0) ""
}
int(1)
array(1) {
[0]=>
string(3) "foo"
}
int(1)
array(1) {
[0]=>
string(0) ""
}
- 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
int(1)
array(1) {
[0]=>
string(0) ""
}
int(1)
array(1) {
[0]=>
string(0) ""
}
int(1)
array(1) {
[0]=>
string(3) "foo"
}
int(1)
array(1) {
[0]=>
string(0) ""
}
preferences:
182.5 ms | 402 KiB | 255 Q