3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = 'this is a string'; // Test 1 if (isset($string['check'][0])) { echo 'found'; } else { echo 'not found'; } echo '<hr />'; // Test 2 if (isset($string[0])) { echo 'found'; } else { echo 'not found'; } echo '<hr />'; // Test 3 if (isset($string['check'])) { echo 'found'; } else { echo 'not found'; } echo '<hr />'; // Test 4 if (isset($string['check'][100])) { echo 'found'; } else { echo 'not found'; } echo '<hr />'; var_dump($string['check'][0]); // Warning throw out
Output for 7.0.0 - 7.1.0
not found<hr />found<hr />not found<hr />not found<hr /> Warning: Illegal string offset 'check' in /in/Rkuvv on line 41 string(1) "t"
Output for 5.4.0 - 5.6.28
found<hr />found<hr />not found<hr />not found<hr /> Warning: Illegal string offset 'check' in /in/Rkuvv on line 41 string(1) "t"
Output for 5.0.3 - 5.0.5, 5.1.1 - 5.3.29
not found<hr />found<hr />found<hr />not found<hr /> Fatal error: Cannot use string offset as an array in /in/Rkuvv on line 41
Process exited with code 255.
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/Rkuvv on line 41
Process exited with code 255.
Output for 5.0.0 - 5.0.2
not found<hr />found<hr />not found<hr />not found<hr /> Fatal error: Cannot use string offset as an array in /in/Rkuvv on line 41
Process exited with code 255.
Output for 4.3.0 - 4.4.9
not found<hr />found<hr />found<hr />not found<hr />NULL