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check_date_format()

Description

Check date conforms to "yyyy-mm-dd hh:mm" format or any valid partital of that e.g. yyyy-mm.

Parameters

ColumnTypeDefaultDescription
$date
string string form of the date to check

Return

string

Location

include/metadata_functions.php lines 190 to 225

Definition

 
function check_date_format($date)
    {
    global $lang;

    if (is_null($date)){$date="";}
    
    // Check the format of the date to "yyyy-mm-dd hh:mm:ss"
    if ((preg_match("/^([0-9]{4})-([0-9]{2})-([0-9]{2}) ([0-9]{2}):([0-9]{2}):([0-9]{2})$/", $date, $parts))
        // Check the format of the date to "yyyy-mm-dd hh:mm"
        || (preg_match("/^([0-9]{4})-([0-9]{2})-([0-9]{2}) ([0-9]{2}):([0-9]{2})$/", $date, $parts))
        // Check the format of the date to "yyyy-mm-dd"
        || (preg_match ("/^([0-9]{4})-([0-9]{2})-([0-9]{2})$/", $date, $parts)))
        {
        if (!checkdate($parts[2], $parts[3], $parts[1]))
            {
            return str_replace("%date%", $date, $lang["invalid_date_error"]);
            }
        return str_replace("%date%", $date, check_date_parts($parts));
        } 

    // Check the format of the date to "yyyy-mm" pads with 01 to ensure validity
    elseif (preg_match("/^([0-9]{4})-([0-9]{2})$/", $date, $parts))
        {
        array_push($parts, '01');
        return str_replace("%date%", $date, check_date_parts($parts));
        } 
    // Check the format of the date to "yyyy" pads with 01 to ensure validity
    elseif (preg_match("/^([0-9]{4})$/", $date, $parts))
        {
        array_push($parts, '01', '01');
        return str_replace("%date%", $date, check_date_parts($parts));
        } 

    // If it matches nothing return unknown format error
    return str_replace("%date%", $date, $lang["unknown_date_format_error"]);
    }

This article was last updated 4th December 2024 08:35 Europe/London time based on the source file dated 6th March 2024 14:45 Europe/London time.