大神幫忙看上 如何沒執(zhí)行小弟我的異常處理代碼
Jun 13, 2016 pm 01:06 PM
大神幫忙看下 怎么沒執(zhí)行我的錯(cuò)誤處理代碼啊
- PHP code
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<?php //定義Error_Handler 函數(shù)
/** * 定義Error_Handler 函數(shù)
* * * @param $error_level 錯(cuò)誤級(jí)別
* * @param $error_message 錯(cuò)誤信息
* * @param $file 錯(cuò)誤所在文件
* * @param $line 錯(cuò)誤所在行數(shù)
* * */
//屏蔽程序中的錯(cuò)誤
error_reporting (0);
set_error_handler("error_handler");
function error_handler ($error_level, $error_message, $file, $line) {
echo "11111111111";
}
myerror_method();
?>
上面這段代碼 調(diào)用了沒定義的函數(shù)myerror_method(); 應(yīng)該執(zhí)行我的自定義錯(cuò)誤處理函數(shù)error_handler（）啊
奈何 echo "11111111111";這句沒有執(zhí)行啊，求大牛幫看下呢，跪謝！
------解決方案--------------------
你調(diào)用不存在函數(shù)，這是致命錯(cuò)誤，直接導(dǎo)致腳本結(jié)束
你試試 echo $sakdfhgkjad;不存在的變量，則可正常調(diào)用自定義錯(cuò)誤處理函數(shù)
BTW:
如果你非要在致命錯(cuò)誤情況下，也能調(diào)用，則試試register_shutdown_function函數(shù)
------解決方案--------------------
php程序執(zhí)行時(shí)有兩個(gè)階段
1、預(yù)編譯階段：完成對(duì)程序文件的語(yǔ)法分析，并生成中間代碼
2、執(zhí)行階段：運(yùn)行中間代碼
set_error_handler("error_handler");
是在執(zhí)行階段執(zhí)行的
所以不能處理預(yù)編譯階段的錯(cuò)誤
------解決方案--------------------
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