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run code in 200+ php & hhvm versions
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<?php $str = "$http _post_vars"; $str1 = "http"; if(stristr($str, '$http')){ echo "fsdfdsa"; }else{ echo "tt"; }
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0rc3
Notice: Undefined variable: http in /in/VFGHq on line 2 tt