3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public function isFoo() { //return $this instanceof Foo; return echo "aa"; } } class Bar { public function doSomething() { return Foo::isFoo(); } } $bar = new Bar; var_dump($bar->doSomething());
Output for 5.4.0 - 5.4.28
Parse error: syntax error, unexpected 'echo' (T_ECHO) in /in/oaQUI on line 7
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected T_ECHO in /in/oaQUI on line 7
Process exited with code 255.
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