3v4l.org

run code in 300+ PHP versions simultaneously
<?php $data = []; $data['phone'] = '2514017257'; $matches = []; preg_match("/\+1\d{10}/", $data['phone'], $matches); var_dump(preg_match("/\+1\d{10}/", $data['phone'])); print_r($matches); $data['phone'] = '+12514017257'; $matches = []; preg_match("/\+1\d{10}/", $data['phone'], $matches); print_r($matches);
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
int(0) Array ( ) Array ( [0] => +12514017257 )
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/63jRn on line 3
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/63jRn on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/63jRn on line 3
Process exited with code 255.

preferences:
252.55 ms | 401 KiB | 379 Q