UPDATE 2:
I have now removed the following from the .php file:
<?php error_reporting( E_ALL ); ?>
I have set display_erros in php.ini as follows:
display_errors = On
Error reporting is set to the following in php.ini:
error_reporting = E_ALL | E_STRICT
After restarting Apache, I still get no errors/warnings.
UPDATE 1:
I have changed error_reporting in php.ini from:
error_reporting = E_ALL & ~E_DEPRECATED
to
error_reporting = E_ALL | E_STRICT
After which I restarted Apache, e.g.
/etc/init.d/apache2 restart
But the page will still not display errors/warnings of any kind.
ORIGINAL QUESTION:
The following script is generating a warning because the $err being inside the if statement. Why is this warning not being displayed on the PHP page in a web browser?
I have to look at the Apache logs to see the warning. Also, if I deliberately change the "insert into" to "delete into", it does not display an error on the PHP page. Why are the errors not displaying on the actual PHP page?
<?php
error_reporting(E_ALL);
?>
<html>
<head>
<title></title>
<link rel="icon" type="image/png" href="favicon.ico">
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$err = array();
if (empty( $_POST['display_name']))
$err[] = "display name field is required";
if (empty( $_POST['email']))
$err[] = "email field is required";
if (empty( $_POST['password']))
$err[] = "password field is required";
if (!$err) {
try {
$DBH = new PDO("mysql:host=localhost;dbname=database1", "user", "pass");
$DBH->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
$STH = $DBH->prepare("delete into table1 (display_name, email, password) values ( :display_name, :email, :password )");
$STH->bindParam(':display_name', $_POST['display_name'], PDO::PARAM_STR, 100);
$STH->bindParam(':email', $_POST['email'], PDO::PARAM_STR, 100);
$STH->bindParam(':password', $_POST['password'], PDO::PARAM_STR, 100);
$STH->execute();
$STH = $DBH->prepare("delete into table2 ( username, status, users_id ) values ( :username, :status, :users_id )");
$strStatus = 1;
$STH->bindParam(':username', $_POST['display_name'], PDO::PARAM_STR, 100);
$STH->bindParam(':status', $strStatus, PDO::PARAM_INT, 1);
$STH->bindParam(':users_id', $_POST['referer'], PDO::PARAM_INT, 1);
$STH->execute();
$DBH = null;
}
catch (PDOException $e) {
echo $e->getMessage();
}
header("Location: " . $_SERVER['PHP_SELF']);
exit;
}
else {
foreach ($_POST as $key => $val) {
$form[$key] = htmlspecialchars($val);
}
}
}
else {
$form['display_name'] = $form['email'] = $form['password'] = '';
}
?>
</head>
<body>
<?php foreach($err as $line) { ?>
<div style="error"><?php echo $line; ?></div>
<?php } ?>
<h1>Register</h1>
<form method="post">
Referers id:<br/>
<input type="text" name="referer" /><br/><br/>
Name:<br/>
<input type="text" name="display_name" value="<?php echo $form['display_name']; ?>" /><br/><br/>
Email:<br/>
<input type="text" name="email" value="<?php echo $form['email']; ?>" /><br/><br/>
Password:<br/>
<input type="text" name="password" value="<?php echo $form['password']; ?>" /><br/><br/>
<input type="submit" value="register" />
</form>
</body>
</html>
PHP errors can be displayed by any of below methods:
ini_set('display_errors', 1);
ini_set('display_startup_errors', 1);
error_reporting(E_ALL);
For more details:
Straight from the php.ini file:
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; Error handling and logging ;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; This directive informs PHP of which errors, warnings and notices you would like
; it to take action for. The recommended way of setting values for this
; directive is through the use of the error level constants and bitwise
; operators. The error level constants are below here for convenience as well as
; some common settings and their meanings.
; By default, PHP is set to take action on all errors, notices and warnings EXCEPT
; those related to E_NOTICE and E_STRICT, which together cover best practices and
; recommended coding standards in PHP. For performance reasons, this is the
; recommend error reporting setting. Your production server shouldn't be wasting
; resources complaining about best practices and coding standards. That's what
; development servers and development settings are for.
; Note: The php.ini-development file has this setting as E_ALL. This
; means it pretty much reports everything which is exactly what you want during
; development and early testing.
;
; Error Level Constants:
; E_ALL - All errors and warnings (includes E_STRICT as of PHP 5.4.0)
; E_ERROR - fatal run-time errors
; E_RECOVERABLE_ERROR - almost fatal run-time errors
; E_WARNING - run-time warnings (non-fatal errors)
; E_PARSE - compile-time parse errors
; E_NOTICE - run-time notices (these are warnings which often result
; from a bug in your code, but it's possible that it was
; intentional (e.g., using an uninitialized variable and
; relying on the fact it is automatically initialized to an
; empty string)
; E_STRICT - run-time notices, enable to have PHP suggest changes
; to your code which will ensure the best interoperability
; and forward compatibility of your code
; E_CORE_ERROR - fatal errors that occur during PHP's initial startup
; E_CORE_WARNING - warnings (non-fatal errors) that occur during PHP's
; initial startup
; E_COMPILE_ERROR - fatal compile-time errors
; E_COMPILE_WARNING - compile-time warnings (non-fatal errors)
; E_USER_ERROR - user-generated error message
; E_USER_WARNING - user-generated warning message
; E_USER_NOTICE - user-generated notice message
; E_DEPRECATED - warn about code that will not work in future versions
; of PHP
; E_USER_DEPRECATED - user-generated deprecation warnings
;
; Common Values:
; E_ALL (Show all errors, warnings and notices including coding standards.)
; E_ALL & ~E_NOTICE (Show all errors, except for notices)
; E_ALL & ~E_NOTICE & ~E_STRICT (Show all errors, except for notices and coding standards warnings.)
; E_COMPILE_ERROR|E_RECOVERABLE_ERROR|E_ERROR|E_CORE_ERROR (Show only errors)
; Default Value: E_ALL & ~E_NOTICE & ~E_STRICT & ~E_DEPRECATED
; Development Value: E_ALL
; Production Value: E_ALL & ~E_DEPRECATED & ~E_STRICT
; http://php.net/error-reporting
error_reporting = E_ALL & ~E_DEPRECATED & ~E_STRICT
For pure development I go for:
error_reporting = E_ALL ^ E_NOTICE ^ E_WARNING
Also don't forget to put display_errors to on
display_errors = On
After that, restart your server for Apache on Ubuntu:
sudo /etc/init.d/apache2 restart
Set these on php.ini:
;display_startup_errors = On
display_startup_errors=off
display_errors =on
html_errors= on
From your PHP page, use a suitable filter for error reporting.
error_reporting(E_ALL);
Filers can be made according to requirements.
E_ALL
E_ALL | E_STRICT
You can see a detailed description here.
ini_set('display_errors', 1);
// Report simple running errors
error_reporting(E_ERROR | E_WARNING | E_PARSE);
// Reporting E_NOTICE can be good too (to report uninitialized
// variables or catch variable name misspellings ...)
error_reporting(E_ERROR | E_WARNING | E_PARSE | E_NOTICE);
// Report all errors except E_NOTICE
error_reporting(E_ALL & ~E_NOTICE);
// Report all PHP errors (see changelog)
error_reporting(E_ALL);
// Report all PHP errors
error_reporting(-1);
// Same as error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);
Changelog
5.4.0 E_STRICT became part of E_ALL
5.3.0 E_DEPRECATED and E_USER_DEPRECATED introduced.
5.2.0 E_RECOVERABLE_ERROR introduced.
5.0.0 E_STRICT introduced (not part of E_ALL).
I was able to get all errors via the below code:
ini_set('display_startup_errors', 1);
ini_set('display_errors', 1);
error_reporting(-1);
Source: Stackoverflow.com