(PHP 4 >= 4.0.1, PHP 5, PHP 7)
set_error_handler — 锟斤拷锟斤拷锟矫伙拷锟皆讹拷锟斤拷拇锟斤拷锟斤拷锟斤拷锟�
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锟斤拷要锟斤拷锟斤拷要锟斤拷住 error_types 锟斤拷指锟斤拷锟侥达拷锟斤拷锟斤拷锟酵讹拷锟斤拷锟狡癸拷 PHP 锟斤拷准锟斤拷锟斤拷锟斤拷锟斤拷锟�
锟斤拷锟角回碉拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷 FALSE锟斤拷
error_reporting() 锟斤拷锟矫斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫讹拷锟斤拷拇锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷岜伙拷锟斤拷锟�
—— 锟斤拷锟斤拷锟斤拷锟斤拷然锟斤拷锟皆伙拷取 error_reporting 锟侥碉拷前值锟斤拷锟斤拷锟斤拷锟绞碉拷锟斤拷锟斤拷
锟斤拷要锟截憋拷注锟斤拷锟斤拷谴锟� @ error-control
operator 前缀锟斤拷锟斤拷浞拷锟斤拷锟斤拷锟绞憋拷锟斤拷锟斤拷值锟斤拷锟斤拷 0锟斤拷
同时注锟解，锟斤拷锟斤拷要时锟斤拷锟斤拷锟斤拷锟斤拷使锟斤拷 die()锟斤拷 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟津返伙拷锟剿ｏ拷锟脚憋拷锟斤拷锟斤拷锟斤拷锟街达拷蟹锟斤拷锟斤拷锟斤拷锟侥猴拷一锟叫★拷
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E_ERROR锟斤拷 E_PARSE锟斤拷
E_CORE_ERROR锟斤拷 E_CORE_WARNING锟斤拷
E_COMPILE_ERROR锟斤拷
E_COMPILE_WARNING锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷 set_error_handler() 锟斤拷锟斤拷锟斤拷锟斤拷锟侥硷拷锟叫诧拷锟斤拷锟侥达拷锟斤拷锟�
E_STRICT锟斤拷
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error_handler
锟斤拷锟铰革拷式锟侥回碉拷锟斤拷callback锟斤拷锟斤拷
锟斤拷锟皆达拷锟斤拷 NULL 锟斤拷锟矫达拷锟斤拷锟斤拷锟侥拷锟阶刺拷锟�
锟斤拷锟剿匡拷锟皆达拷锟诫函锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟皆达拷锟斤拷锟斤拷锟矫讹拷锟斤拷投锟斤拷蠓椒锟斤拷锟斤拷锟斤拷锟斤拷椤�
$errno
, string $errstr
[, string $errfile
[, int $errline
[, array $errcontext
]]] ) : boolerrnoerrno锟斤拷锟斤拷锟斤拷锟剿达拷锟斤拷募锟斤拷锟斤拷锟揭伙拷锟� integer锟斤拷
errstrerrstr锟斤拷锟斤拷锟斤拷锟剿达拷锟斤拷锟斤拷锟较拷锟斤拷锟揭伙拷锟� string锟斤拷
errfileerrfile锟斤拷
锟斤拷锟斤拷锟剿凤拷锟斤拷锟斤拷锟斤拷锟斤拷募锟斤拷锟斤拷锟斤拷锟揭伙拷锟� string锟斤拷
errlineerrline锟斤拷
锟斤拷锟斤拷锟剿达拷锟斤拷锟斤拷锟斤拷锟叫号ｏ拷锟斤拷一锟斤拷 integer锟斤拷
errcontexterrcontext锟斤拷
锟斤拷一锟斤拷指锟斤拷锟斤拷锟斤拷锟绞憋拷疃拷锟斤拷疟锟斤拷 array锟斤拷
也锟斤拷锟斤拷说锟斤拷errcontext
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锟矫伙拷锟侥达拷锟斤拷锟斤拷锟斤拷锟接︼拷锟斤拷薷拇锟斤拷锟斤拷锟斤拷锟斤拷模锟絚ontext锟斤拷锟斤拷
PHP 7.2.0 锟斤拷瞬锟斤拷锟斤拷锟�锟斤拷锟斤拷锟剿★拷 锟斤拷锟戒不锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟� FALSE锟斤拷锟斤拷准锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷蚪锟斤拷锟斤拷锟斤拷锟矫★拷
error_types
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锟剿诧拷锟斤拷锟杰癸拷锟斤拷锟斤拷锟斤拷锟斤拷 error_handler 锟侥达拷锟斤拷锟斤拷
锟斤拷锟矫伙拷懈锟斤拷锟斤拷耄�
锟斤拷锟斤拷 error_reporting 锟斤拷锟斤拷锟斤拷锟斤拷玫模锟�
error_handler 锟斤拷锟斤拷锟斤拷每锟斤拷锟斤拷锟斤拷锟斤拷时锟斤拷锟斤拷锟矫★拷
锟斤拷锟街帮拷卸锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷蚍祷馗贸锟斤拷锟斤拷锟斤拷频锟� string锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷玫拇锟斤拷锟斤拷锟斤拷锟斤拷锟津返伙拷 NULL锟斤拷
锟斤拷锟斤拷锟街革拷锟斤拷锟揭伙拷锟斤拷锟叫э拷幕氐锟斤拷锟斤拷锟斤拷锟酵拷锟斤拷岱碉拷锟� NULL锟斤拷
锟斤拷锟街帮拷拇锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷一锟斤拷锟斤拷姆锟斤拷锟斤拷锟斤拷撕锟斤拷锟斤拷岱碉拷锟揭伙拷锟斤拷锟斤拷锟酵凤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷(indexed array)锟斤拷
| 锟芥本 | 说锟斤拷 |
|---|---|
| 7.2.0 |
errcontext 锟斤拷锟斤拷锟斤拷锟斤拷
使锟矫此诧拷锟斤拷时锟结导锟斤拷 E_DEPRECATED 锟斤拷锟窖★拷
|
| 5.5.0 |
error_handler 锟缴斤拷锟斤拷 NULL锟斤拷
|
| 5.2.0 |
锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟诫返锟斤拷 FALSE 锟斤拷锟斤拷示
$php_errormsg锟斤拷
|
Example #1 锟斤拷 set_error_handler() 锟斤拷 trigger_error() 锟斤拷锟叫达拷锟斤拷锟斤拷
锟斤拷锟斤拷示锟斤拷展示锟斤拷通锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷锟矫伙拷锟皆讹拷锟斤拷某锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷诓锟斤拷斐ｏ拷拇锟斤拷锟�
<?php
// error handler function
function myErrorHandler($errno, $errstr, $errfile, $errline)
{
if (!(error_reporting() & $errno)) {
// This error code is not included in error_reporting, so let it fall
// through to the standard PHP error handler
return false;
}
switch ($errno) {
case E_USER_ERROR:
echo "<b>My ERROR</b> [$errno] $errstr<br />\n";
echo " Fatal error on line $errline in file $errfile";
echo ", PHP " . PHP_VERSION . " (" . PHP_OS . ")<br />\n";
echo "Aborting...<br />\n";
exit(1);
break;
case E_USER_WARNING:
echo "<b>My WARNING</b> [$errno] $errstr<br />\n";
break;
case E_USER_NOTICE:
echo "<b>My NOTICE</b> [$errno] $errstr<br />\n";
break;
default:
echo "Unknown error type: [$errno] $errstr<br />\n";
break;
}
/* Don't execute PHP internal error handler */
return true;
}
// function to test the error handling
function scale_by_log($vect, $scale)
{
if (!is_numeric($scale) || $scale <= 0) {
trigger_error("log(x) for x <= 0 is undefined, you used: scale = $scale", E_USER_ERROR);
}
if (!is_array($vect)) {
trigger_error("Incorrect input vector, array of values expected", E_USER_WARNING);
return null;
}
$temp = array();
foreach($vect as $pos => $value) {
if (!is_numeric($value)) {
trigger_error("Value at position $pos is not a number, using 0 (zero)", E_USER_NOTICE);
$value = 0;
}
$temp[$pos] = log($scale) * $value;
}
return $temp;
}
// set to the user defined error handler
$old_error_handler = set_error_handler("myErrorHandler");
// trigger some errors, first define a mixed array with a non-numeric item
echo "vector a\n";
$a = array(2, 3, "foo", 5.5, 43.3, 21.11);
print_r($a);
// now generate second array
echo "----\nvector b - a notice (b = log(PI) * a)\n";
/* Value at position $pos is not a number, using 0 (zero) */
$b = scale_by_log($a, M_PI);
print_r($b);
// this is trouble, we pass a string instead of an array
echo "----\nvector c - a warning\n";
/* Incorrect input vector, array of values expected */
$c = scale_by_log("not array", 2.3);
var_dump($c); // NULL
// this is a critical error, log of zero or negative number is undefined
echo "----\nvector d - fatal error\n";
/* log(x) for x <= 0 is undefined, you used: scale = $scale" */
$d = scale_by_log($a, -2.5);
var_dump($d); // Never reached
?>
锟斤拷锟斤拷锟斤拷锟教碉拷锟斤拷锟斤拷锟斤拷锟斤拷冢锟�
vector a
Array
(
[0] => 2
[1] => 3
[2] => foo
[3] => 5.5
[4] => 43.3
[5] => 21.11
)
----
vector b - a notice (b = log(PI) * a)
<b>My NOTICE</b> [1024] Value at position 2 is not a number, using 0 (zero)<br />
Array
(
[0] => 2.2894597716988
[1] => 3.4341896575482
[2] => 0
[3] => 6.2960143721717
[4] => 49.566804057279
[5] => 24.165247890281
)
----
vector c - a warning
<b>My WARNING</b> [512] Incorrect input vector, array of values expected<br />
NULL
----
vector d - fatal error
<b>My ERROR</b> [256] log(x) for x <= 0 is undefined, you used: scale = -2.5<br />
Fatal error on line 35 in file trigger_error.php, PHP 5.2.1 (FreeBSD)<br />
Aborting...<br />