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@ 2016-08-09T13:22:20Z

<?php

function func1( &$ref ) {
    function ref( &$ref ) { var_dump( $ref ); }
    
    $func = 'ref';
    ref( $ref );
    
    $func( $ref );
    
    call_user_func_array( $func, array( &$ref ) );
    
    call_user_func( $func, $ref );
}

$var = array();
func1( $var );

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)

preferences:dark modelive previewkey bindings

29.96 ms | 404 KiB | 5 Q