PHP | date_default_timezone_set() Function
Last Updated :
14 Sep, 2018
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The date_default_timezone_set() function is an inbuilt function in PHP which is used to set the default timezone used by all date/time functions in a script. This function returns False if the timezone is not valid, or True otherwise.
Syntax:
php
php
bool date_default_timezone_set( $timezone_identifier )Parameters: This function accepts single parameter $timezone_identifier which is mandatory. This parameter set the timezone identifier, like UTC or Asia/Kolkata. Return Value: This function returns False if the timezone_identifier is not valid, or True otherwise. Below programs illustrate the date_default_timezone_set() function in PHP: Program 1:
<?php
// Set timezone
date_default_timezone_set('Asia/Kolkata');
// Create
$timezone_object = date_default_timezone_get();
// Compare the timezone with ini-set timezone
if (strcmp($timezone_object, ini_get('date.timezone'))){
echo 'Script timezone differs from ini-set timezone.';
} else {
echo 'Script timezone and ini-set timezone match.';
}
?>
<?php// Set timezonedate_default_timezone_set('Asia/Kolkata');// Create $timezone_object = date_default_timezone_get();// Compare the timezone with ini-set timezoneif (strcmp($timezone_object, ini_get('date.timezone'))){ echo 'Script timezone differs from ini-set timezone.';} else { echo 'Script timezone and ini-set timezone match.';}?>
Output:
Program 2:
Script timezone differs from ini-set timezone.
<?php
// Set the timezone
date_default_timezone_set('Asia/Dubai');
// Create the timezone object
$timezone_object = date_default_timezone_get();
// Compare the timezone with ini-set timezone
if (strcmp($timezone_object, ini_get('date.timezone'))){
echo 'Script timezone differs from ini-set timezone.';
} else {
echo 'Script timezone and ini-set timezone match.';
}
?>
<?php// Set the timezonedate_default_timezone_set('Asia/Dubai');// Create the timezone object$timezone_object = date_default_timezone_get();// Compare the timezone with ini-set timezoneif (strcmp($timezone_object, ini_get('date.timezone'))){ echo 'Script timezone differs from ini-set timezone.';} else { echo 'Script timezone and ini-set timezone match.';}?>
Output:
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Reference: http://php.net/manual/en/function.date-default-timezone-set.php
Script timezone differs from ini-set timezone.
