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<?php // File "load.php". namespace Foo\Bar { class load { static public function arithmetic() { require_once __DIR__ . '/arithmetic.php'; } } } // File "arithmetic.php". namespace Foo\Bar\Functions { function add($a, $b) { return $a + $b; } const add = 'Foo\Bar\Functions\add'; } // User app. namespace Some\App { use Foo\Bar\load; use Foo\Bar\Functions as f; //load::arithmetic(); <-- commented out only for this demo (cause we have no real file) echo f\add(5, 6) . "\n"; // 11 $callable = f\add; echo $callable(5, 6); // 11 }
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
11 11
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_STRING in /in/s5oBb on line 4
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/s5oBb on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/s5oBb on line 4
Process exited with code 255.

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