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@ 2015-12-05T22:08:17Z

<?php

class G {
    public $prefixes = array();
    
    public function test($prefix, $baseDir) {
        if (!isset($this->prefixes[$prefix])) {
            $this->prefixes[$prefix] = [];
        }
        array_push($this->$prefixes[$prefix], $baseDir);
    }
}
$l = new G();
$l->test("a", "b");
var_dump($l);

Output
Performance
VLD
References
Branches

array_push: documentation ( source)
var_dump: documentation ( source)

preferences:dark modelive preview

50.71 ms | 402 KiB | 5 Q