3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array(1,2); $query = 'found {{$_the.test}}'; $_the['test'] = 'var'; preg_match('/({{\$(.*)}})/',$query,$matches); var_dump($matches[2]); $parts = explode('.',$matches[2]); var_dump(${"$parts[0][[$parts[1]]"}); $new = preg_replace('/({{\$(.*)}})/',${$matches[2]},$query); echo $new;
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
string(9) "_the.test" Warning: Undefined variable $_the[[test] in /in/7G6Ne on line 9 NULL Warning: Undefined variable $_the.test in /in/7G6Ne on line 10 Deprecated: preg_replace(): Passing null to parameter #2 ($replacement) of type array|string is deprecated in /in/7G6Ne on line 10 found
Output for 8.0.0 - 8.0.30
string(9) "_the.test" Warning: Undefined variable $_the[[test] in /in/7G6Ne on line 9 NULL Warning: Undefined variable $_the.test in /in/7G6Ne on line 10 found
Output for 5.0.4 - 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, 5.5.24 - 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 - 7.3.31, 7.4.0 - 7.4.33
string(9) "_the.test" Notice: Undefined variable: _the[[test] in /in/7G6Ne on line 9 NULL Notice: Undefined variable: _the.test in /in/7G6Ne on line 10 found
Output for 7.3.32 - 7.3.33
string(9) "_the.test" NULL found
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
string(9) "_the.test" Notice: Undefined variable: _the[[test] in /in/7G6Ne on line 9 NULL Notice: Undefined variable: _the.test in /in/7G6Ne on line 10 found
preferences:
246.46 ms | 406 KiB | 312 Q