3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php // Everything you enter here will be executed by our servers. Try it! $sql="SELECT * FROM table_name WHERE username= '{$_SERVER['REMOTE_ADDR']}'" ; echo $sql;
Output for 5.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Undefined index: REMOTE_ADDR in /in/aeFLW on line 4 SELECT * FROM table_name WHERE username= ''
Output for 4.3.0 - 5.2.17
Notice: Undefined index: REMOTE_ADDR in /in/aeFLW on line 4 SELECT * FROM table_name WHERE username= ''