in PHP, how to check if the date_create return an valid date object?

date_create('sd开发者_C百科fsdfdsfsd') //invalid
date_create('2010-07-30 08:03') //valid

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As you can see from the documentation it is simply an alias of DateTime::__construct which:

Returns a new DateTime instance. Procedural style returns FALSE on failure.

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Or you could validate first:

php check for a valid date, weird date conversions

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If the date_create function doesn't return a valid date object, it'll return FALSE.

A much more complicated alternative is to validate its parameter with Regex according to http://www.php.net/manual/en/datetime.formats.php.

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Isn't this covered right at the top of the manual page?

<?php
$date = date_create('2000-01-01');
if (!$date) {
    $e = date_get_last_errors();
    foreach ($e['errors'] as $error) {
        echo "$error\n";
    }
    exit(1);
}

echo date_format($date, 'Y-m-d');
?>