PHP error handling functions - error_reporting()
Description
The error_reporting() function is used to set which PHP errors are reported.
Version:
PHP 4,5
Syntax:
error_reporting(level )
Parameter:
Parameter | Description | Required / Optional | Type |
---|---|---|---|
level | Specifies the error report level of a script. Values are either bitmask or constants. Considering future compatibility issues, it is recommended that you use constants. | Optional | integer |
Return Values:
Returns the old error_reporting level or the current level when no level parameter is specified.
Example:
<?php
// Turn off all error reporting
error_reporting(0);
// Report simple errors
error_reporting(E_ERROR | E_WARNING | E_PARSE);
// Reporting E_NOTICE
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
error_reporting(E_ALL);
// Report all PHP errors
error_reporting(-1);
// Same as error_reporting(E_ALL);
ini_set('error_reporting', E_ALL);
?>
Previous: error_log()
Next: restore_error_handler()
PHP: Tips of the Day
How to Sort Multi-dimensional Array by Value?
Try a usort, If you are still on PHP 5.2 or earlier, you'll have to define a sorting function first:
Example:
function sortByOrder($a, $b) { return $a['order'] - $b['order']; } usort($myArray, 'sortByOrder');
Starting in PHP 5.3, you can use an anonymous function:
usort($myArray, function($a, $b) { return $a['order'] - $b['order']; });
And finally with PHP 7 you can use the spaceship operator:
usort($myArray, function($a, $b) { return $a['order'] <=> $b['order']; });
To extend this to multi-dimensional sorting, reference the second/third sorting elements if the first is zero - best explained below. You can also use this for sorting on sub-elements.
usort($myArray, function($a, $b) { $retval = $a['order'] <=> $b['order']; if ($retval == 0) { $retval = $a['suborder'] <=> $b['suborder']; if ($retval == 0) { $retval = $a['details']['subsuborder'] <=> $b['details']['subsuborder']; } } return $retval; });
If you need to retain key associations, use uasort() - see comparison of array sorting functions in the manual
Ref : https://bit.ly/3i77vCC
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