【請教】在函數里面定義函數后，調用，為什么會報錯？
<?php
function?test5(){
????function?test6(){
????????echo?'this?is?test6';
????????return?888;
????}
????echo?123;
????return?test6();
}
test5();
echo?'<hr?/>';
var_dump(test5());上面這段代碼報錯：
?Fatal error: Cannot redeclare test6() (previously declared in E:\xampp\htdocs\test\testecho.php:4) in E:\xampp\htdocs\test\testecho.php on line?4
2017-03-26
重復定義了test6函數了
把var_dump(test5())去掉即可
調用了test5后 可以直接調用test6
2017-10-21
函數不能嵌套
2017-07-24
不太清楚