get_defined_vars

(PHP 4 >= 4.0.4, PHP 5, PHP 7)

get_defined_vars — 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟窖讹拷锟斤拷锟斤拷锟斤拷锟斤拷锟缴碉拷锟斤拷锟斤拷

锟斤拷锟斤拷

get_defined_vars ( void ) : array

锟剿猴拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟窖讹拷锟斤拷锟斤拷锟斤拷斜锟侥讹拷维锟斤拷锟介，锟斤拷些锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫伙拷锟斤拷锟斤拷谋锟斤拷锟斤拷锟�


<?php
$b = array(1,1,2,3,5,8);

$arr = get_defined_vars();

// 锟斤拷印 $b
print_r($arr["b"]);

// 锟斤拷印 PHP 锟斤拷锟酵筹拷锟斤拷锟铰凤拷锟斤拷锟斤拷锟斤拷 PHP 锟斤拷为 CGI 使锟矫的伙拷锟斤拷
// 锟斤拷锟界：/usr/local/bin/php
echo $arr["_"];

// 锟斤拷印锟斤拷锟斤拷锟叫诧拷锟斤拷锟斤拷锟斤拷锟斤拷械幕锟斤拷锟�
print_r($arr["argv"]);

// 锟斤拷印锟斤拷锟叫凤拷锟斤拷锟斤拷锟斤拷锟斤拷
print_r($arr["_SERVER"]);

// 锟斤拷印锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锌锟斤拷眉锟街�
print_r(array_keys(get_defined_vars()));
?>

锟轿硷拷 get_defined_functions() 锟斤拷 get_defined_constants()锟斤拷