PHP5中文手册·Reading [] -- 追寻梦想＞编程乐园＞PHP 编程

Reading []


<?php
class XmlTest {

    function test_ref(&$test) {
        $test = "ok";
    }

    function test($test) { }

    function run() {
        $ar = array();
        $this->test_ref($ar[]);
        var_dump($ar);
        $this->test($ar[]);
    }
}

$o = new XmlTest();
$o->run();
?>

This should always have thrown a fatal E_ERROR, because [] cannot be used for reading in PHP. It is invalid code in PHP 4.4.2 and PHP 5.0.5 upward.


	PHP5中文手册 Changes in reference handling Integer values in function parameters Migrating from PHP 5.0.x to PHP 5.1.x PHP Manual Reading [] `<?php class XmlTest { function test_ref(&$test) { $test = "ok"; } function test($test) { } function run() { $ar = array(); $this->test_ref($ar[]); var_dump($ar); $this->test($ar[]); } } $o = new XmlTest(); $o->run(); ?>` This should always have thrown a fatal `E_ERROR`, because [] cannot be used for reading in PHP. It is invalid code in PHP 4.4.2 and PHP 5.0.5 upward. Changes in reference handling Integer values in function parameters Migrating from PHP 5.0.x to PHP 5.1.x PHP Manual