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run code in 150+ php & hhvm versions
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<?php $variableName = 'MyVariable'; // Create new variable with the name defined in variable $variableName ${$variableName} = '1+1'; //Outputs: string(7) "MyValue" var_dump($MyVariable); //Outputs: string(7) "MyValue" var_dump(${'MyVariable'});
Output for 4.3.0 - 7.1.0
string(3) "1+1" string(3) "1+1"