3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $nullvar = null; $nullstr = ''; $notnull = 'foo'; $unset = 'something'; unset($unset); $results = array( '<h1>Results</h1>' , '<br/>$nullvar = ' , var_dump(isset($nullvar)) , '<br/> $nullstr = ' , var_dump(isset($nullstr)) , '<br/>$notnull = ' , var_dump(isset($notnull)) , '<br/>$unset = ' , var_dump(isset($unset)) ); echo impode(' ',$results);
Output for 7.0.0 - 7.1.0
bool(false) bool(true) bool(true) bool(false) Fatal error: Uncaught Error: Call to undefined function impode() in /in/hV43O:19 Stack trace: #0 {main} thrown in /in/hV43O on line 19
Process exited with code 255.
Output for 5.0.0 - 5.6.28
bool(false) bool(true) bool(true) bool(false) Fatal error: Call to undefined function impode() in /in/hV43O on line 19
Process exited with code 255.
Output for 4.4.5 - 4.4.9
bool(false) bool(true) bool(true) bool(false) Fatal error: Call to undefined function: impode() in /in/hV43O on line 19
Process exited with code 255.
Output for 4.3.2 - 4.4.4
bool(false) bool(true) bool(true) bool(false) Fatal error: Call to undefined function: impode() in /in/hV43O on line 19
Process exited with code 255.
Output for 4.3.0 - 4.3.1
bool(false) bool(true) bool(true) bool(false) Fatal error: Call to undefined function: impode() in /in/hV43O on line 19