PHPº¯ÊýĬÈÏÖµ²»ÄÜÉèΪÊý×éÂð£¿

<?php
$a=range('a','d');

function t($z=$a)
{
    print_r($z);
}

t();
?>

Ϊʲô»á±¨´í£¿

---

t()û¸ø²ÎÊýѽ£¡
PHP code:

<?php
$a=range('a','d');
$z=$a;
function t($c){
print_r($c);
}

t($z);
?>

---

<?php
$a=range('a','d');

function t($z)
{
    print_r($z);
}

t($a);
?>

---

¹þ¹þ£¬Ã»¸ø²ÎÊý

---

Ðֵܰ¡£¬ÄãÔõô˵ҲµÃ¸ø¸ö²ÎÊý°¡£¬ÔÙ˵ÁË£¬ÄãÔÚº¯ÊýÀïÃæд$z=$a£¬º¯ÊýÄÄÖªµÀÊÇÄĸö$a°¡¡£

---

function t($z = array(1, 2, 3)){
          print_r($z);
}

---

function test($a=array(1,2)){
return $a;
}

print_r(test());


ÄãÄÇÑùдº¯Êý²»ÖªµÀ$a ÊÇɶ

---

Ŷ Ô­À´ÊÇÕâÑù°¡

6§ 5§ µÄ ÊÇÎÒ˵µÄÄǸöÒâ˼

---

ĬÈϲÎÊý±ØÐëÊdz£Á¿....»òÕß³£Á¿±í´ïʽ....
²»¿ÉÒÔÊDZäÁ¿....

---

$a=range('a', 'd');
eval("function t(\$z=".var_export($a,true).") { print_r(\$z);  }");

t();