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run code in 200+ php & hhvm versions
Bugs & Features
<?php error_reporting(0); echo ${[${[${[${[${[${[${[${[${${![]}.=[]}.=${![]}{!![]}]}.=${!![${[${[ ${[${[${[${[${[]}++]}++]}++]}++]}++]}++]}++]}{![]+![]+![]}]}.=${[${[$ {[${[${[]}++]}++]}++]}++]}{![]}]}.=${[${[${[${[${[${[${[${[]}++]}++]} ++]}++]}++]}++]}++]}{![]+![]}.${[]}{![]+![]}]}.=${![]}^${!![${[${[${[ ]}++]}++]}++]}{![]+![]+![]}]}.=${[]}{!![]}]}.=${[${[${[${[${[${[${[${ [${[${[${[${[${[${[${[${[]}++]}++]}++]}++]}++]}++]}++]}++]}++]}++]}++ ]}++]}++]}++]}++]}{![]+![]+![]+![]}.${[]}{![]+![]+![]+![]}]}.=${[${[$ {[${[]}++]}++]}++]}{![]+![]}.${![]}{![]+![]+![]}]}.=${[${![]}=${![]}{ !![]}]}{!![${!![${!![${![]}++]}++]}++]}^${!![${[${[${[]}++]}++]}++]};
Output for 7.0.28 - 7.3.0rc3
Notice: Array to string conversion in /in/hfbAb on line 4 Notice: Array to string conversion in /in/hfbAb on line 5 Notice: Array to string conversion in /in/hfbAb on line 5 Notice: Array to string conversion in /in/hfbAb on line 6 Notice: Array to string conversion in /in/hfbAb on line 7 Notice: Array to string conversion in /in/hfbAb on line 7 Notice: Array to string conversion in /in/hfbAb on line 8 Notice: Array to string conversion in /in/hfbAb on line 9 Notice: Array to string conversion in /in/hfbAb on line 10 Notice: Array to string conversion in /in/hfbAb on line 11 Hello World!
Output for 5.6.38
Hello World!