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run code in 150+ php & hhvm versions
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<?php $callable = "Class::czdayshortly"; if (is_callable($callable, FALSE, $text)) { echo "supr"; } else { echo "ook"; } $functionVariable = 'someFunction'; var_dump(is_callable($functionVariable, false, $callable_name));
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
ookbool(false)