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问题描述
是否存在一个php.ini指令,该指令可以对错误进行堆栈跟踪?我已经看过这里了: http://php.net/manual/en/ini.core .php .由于某些原因,我的共享主机未安装Xdebug.我尝试将它们放在.htaccess中:
Is there a php.ini directive that enables stack traces on errors? I already looked here: http://php.net/manual/en/ini.core.php. My shared-hosting does not have Xdebug installed for some reason. I tried putting these in .htaccess:
php_value track_erors On
php_value report_zend_debug 1
但没有堆栈跟踪.
推荐答案
有 debug_backtrace
.但是,这对于致命错误将不起作用,因为这些错误无法处理.
There's debug_backtrace
. This won't work for fatal errors though, since those cannot be handled.
示例:
<?php
function exceptions_error_handler($severity, $message, $filename, $lineno) {
var_dump(debug_backtrace());
}
set_error_handler('exceptions_error_handler');
function c() {
echo $a;
}
c();
给予:
array
0 =>
array
'file' => string '/tmp/cpu7HL5A' (length=13)
'line' => int 9
'function' => string 'exceptions_error_handler' (length=24)
'args' =>
array
0 => &int 8
1 => &string 'Undefined variable: a' (length=21)
2 => &string '/tmp/cpu7HL5A' (length=13)
3 => &int 9
4 => &
array
empty
1 =>
array
'file' => string '/tmp/cpu7HL5A' (length=13)
'line' => int 12
'function' => string 'c' (length=1)
'args' =>
array
empty
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