PHP????璇??у?惰?绠?绗???涓???杩?绠?绗?/h3> - 1. ??璇??у?惰?绠?绗?/li>
- 2. 涓???杩?绠?绗?/li>
- 缁???璇?
1. ??璇??у?惰?绠?绗?/h1>
??璇??у?惰?绠?绗???code>??@??琛ㄧず锛??ㄦ??浣?涔???浣跨????ㄦ?ュ??介??璇?淇℃????????锛?
???跺??涓??藉?绋?搴?????璇?淇℃???ㄩ?ㄦ?劇ず缁?瀹㈡?鳳???璇?淇℃???????藉???????頒腑寰?澶?淇?瀵???淇℃??锛?濡??ㄦ?峰????瀵??????ㄦ?風?誨???楠?璇??瑰?绛?锛?
涓轟?灏?淇℃??灞??斤????ㄥ?規????????璇???绋?搴?浠ｇ????????code>??@??绗??鳳?
渚?瀛? 1锛?
<?php
$a=@(8/0); //?ヤ??蟲?劇ず?ゆ?頒負?堕??璇?锛??ㄨ〃杈懼?????涓???@???沖??
?>
??涓??㈢????璇??ㄧ?绋????跺????涓?浼??虹?扮??锛???涓哄?瀹規??灏辮?藉???伴??璇?锛?璋?璇?绋?搴??朵??藉???跺???幫?
??
mysql_connect()?芥??/code>?????㈡坊??绗?????@??锛????ㄦ?ュ??藉?芥?闆?洪??淇℃??锛???灏??炬?ユ?版??搴???璇??ュ????濡?涓?褰㈠?锛?
?ヤ???唬??涓?锛?濡?璋??ㄥ?芥?闆?洪??锛?灏??ц? or ???㈢??璇??ワ??朵腑
die()?芥??/code>?ㄤ???姝㈣?????ц?骞跺???ㄦ?瘋??????版??搴????″?ㄩ?炬?ュけ璐ワ???锛?杩??風?搴?浜哄??灏卞?瀹規???懼?伴??棰??????
2. 涓???杩?绠?绗?/h1>
涓???杩?绠?绗???浣?涓???
if
?ゆ??璇??ョ被浼鹼?????绠?????
if
?ゆ??锛??變??ㄥ??缁???锛????㈡???ゆ??琛ㄨ揪寮?锛????㈡??涓ゆ?¤煩杞?璇??ワ?
褰??ゆ??琛ㄨ揪寮??訛??ц????㈢??绗?涓??¤???ワ?褰??ゆ??琛ㄨ揪寮?涓???绔??訛??ц????㈢??绗?浜??¤???ワ?
杩??風????浣?绗???HP涓?????涓?涓?锛??ㄧ????
???:??
琛ㄧず锛?
璇?娉??煎?涓猴?
琛ㄨ揪寮?锛?璇???锛?璇???
?ヨ〃杈懼???绔?锛??ц?璇???锛??????ц?璇???
渚?瀛? 2锛?
<?php
header("content-type:text/html;charset=gb2312");
$a=date("D",time());
echo(@a=="Sat"||$a=="Sun")?"浠?澶╁??浠ヤ???锛?":"浠?澶╂?ｅ父涓???锛?";
?>
?ц?缁???濡?涓???绀猴?
PHP 的錯誤控制運算符和三元運算符1. 錯誤控制運算符2. 三元運算符結束語
缁???璇?
?ヨ?绡???绔???甯??頒?锛?缁?涓?璧?锛??朵釜??锛?娆㈣?澶у?剁??瑷?璇?璁猴?
?ユ??绔???浠?涔?涔???璇?锛?娆㈣?澶у?舵??????