How do you format php error messages? they don't respect css
Whenever PHP outputs an error message it disregards css and a beautifully designed page by ou开发者_运维技巧tputting the message at the top of the page removing anything that stands in its way.
for example
some code} else {
echo "error, please do something!";
How do I get it to (or ask it nicely) to output the text inside a div that already exists inside my css so that it will obey the formatting and alignment rules that comes with that div.
You can use the following php.ini settings:
error_prepend_string = "<div class='error'>"
error_append_string = "</div>"
Or something to that effect.
EDIT
Actually, I just realized the "error" you're talking about involves an echo/print out. Here's the problem.
You're printing (echoing) the string error DIRECTLY TO the output buffer (which sends the HTML to the browser when you're finished running all your code). echo() and print() sends what you are echoing/printing straight out, unless it's in an output_buffer block (I won't confuse you with details on that).
So, you're managing your regular html/text output in such a way as to NOT print the page content out to the output buffer, but in this case you are using an echo, which sends the string data directly to the buffer AT THAT MOMENT.
For instance:
Your problem in a simple example
<?php
$mystr = "<html>";
$mystr .= "<body><h1>Hello World</h1></body></html>";
echo "<head></head>";
echo $mystr;
?>
Which would give me on output to the browser:
<head></head><html><body><h1>Hello World</h1></body></html>
I am storing the string data, but echoing the HEAD block before I echo the other html data.
What I need to do instead:
<?php
$mystr = "<html>";
$mystr .= "<head></head>";
$mystr .= "<body><h1>Hello World</h1></body></html>";
echo $mystr;
?>
Which would give me on output to the browser:
<html><head></head><body><h1>Hello World</h1></body></html>
I am storing the string output (your error, in this case) until I need to output it later. This is what you need to know, and accomplish in your code.
I would investigate error_reporting(0)/display_errors, error_get_last, and set_error_handler.
http://www.php.net/manual/en/function.error-reporting.php
http://www.php.net/manual/en/errorfunc.configuration.php#ini.display-errors
http://php.net/manual/en/function.error-get-last.php
http://www.php.net/manual/en/function.set-error-handler.php
So that you could stop sending all errors immediately to the output buffer (which is why it's at the top of the page), and then capture, store and present your errors.
error_reporting(0);
set_error_handler('phpLogError');
function phpLogError() {
$error = error_get_last();
if ($error['type'] == 1) {
//do your stuff
}
}
function phpGetLoggedErrors() {
// return your prettified html errors
}
Or, in other words...
php_error_handle.php
<?php
$GLOBAL['_logged_php_errors'] = array();
error_reporting(0);
set_error_handler('phpLogError');
function phpLogError() {
global $_logged_php_errors;
$error = error_get_last();
if ($error['type'] == 1) {
$_logged_php_errors[] = "<span>$error</span>";
}
}
function phpGetLoggedErrors() {
global $_logged_php_errors;
return "<ol><li>".implode('</li><li>',$_logged_php_errors)."</li></ol>";
}
?>
other.php
<?php
require_once 'php_error_handle.php';
// other stuff, pages included/required, etc...
Just make sure this require_once happens at the first line of code.
Extending @mario above, I've used this at the top of my php file (in dev, not production of course!) which works great. Even in Wordpress admin files!
ini_set('error_prepend_string',"<div class='error'>") ;
ini_set('error_append_string',"</div>") ;
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
Try...catch
http://php.net/manual/en/language.exceptions.php
You can make the error echo in your own css.
echo '<div class="yourerrorclass">error, please do something!</div>';
If it is in the wrong place in the output, that is because you output the error too soon. The entire HTML is outputted sequentially by PHP. If you output the error before any of the other HTML, the error will be on the top of the page and will actually make your HTML invalid.
Displaying errors to screen should be entirely suppressed when running in production, instead log them to file for checking, and fixing. There are details, and the suggested settings in the php.ini file.
加载中,请稍侯......
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