$GLOBALS 添加超全局变量
<?php function test() { $foo = "local variable"; echo '$foo in global scope: ' . $GLOBALS["foo"] . "\n"; echo '$foo in current scope: ' . $foo . "\n"; } $foo = "Example content"; test(); ?>
结果:
$foo in global scope: Example content $foo in current scope: local variable
$GLOBAL["变量名"];