3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = 'php5'; $php5['bar']['baz'] = 'Jason'; var_dump($$foo['bar']['baz']); //php5 = $($foo['bar']['baz']) = $Jason = Young; echo "\n----------------php7 down------------------\n"; $bar = 'php7'; $php7['bar']['baz'] = 'Young'; var_dump($$bar['bar']['baz']);

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