PHP date_parse() 函数

date_parse() 函数用于解析日期/时间字符串，返回一个包含日期信息的关联数组。

<?php
$date = "2023-12-25 14:30:45";
$result = date_parse($date);
print_r($result);
?>
                            

输出：

Array
(
    [year] => 2023
    [month] => 12
    [day] => 25
    [hour] => 14
    [minute] => 30
    [second] => 45
    [fraction] => 0
    [warning_count] => 0
    [warnings] => Array()
    [error_count] => 0
    [errors] => Array()
    [is_localtime] =>
)
                            

<?php
$date = "2023-02-30 25:61:61"; // 无效的日期时间
$result = date_parse($date);
print_r($result);
?>
                            

输出：

Array
(
    [year] => 2023
    [month] => 2
    [day] => 30
    [hour] => 25
    [minute] => 61
    [second] => 61
    [fraction] => 0
    [warning_count] => 5
    [warnings] => Array
        (
            [4] => Unexpected character
            [9] => Unexpected character
            [10] => The parsed date was invalid
            [12] => The parsed date was invalid
            [14] => The parsed date was invalid
        )
    [error_count] => 0
    [errors] => Array()
    [is_localtime] =>
)
                            

<?php
function validateDate($date) {
    $parsed = date_parse($date);

    if ($parsed['error_count'] > 0 || $parsed['warning_count'] > 0) {
        return false;
    }

    // 检查日期是否有效
    return checkdate($parsed['month'], $parsed['day'], $parsed['year']);
}

$dates = [
    "2023-12-25",
    "2023-02-30",
    "2023-13-01",
    "invalid-date"
];

foreach ($dates as $date) {
    echo "'$date' is " . (validateDate($date) ? 'valid' : 'invalid') . ".
";
}
?>
                            

输出：

'2023-12-25' is valid.
'2023-02-30' is invalid.
'2023-13-01' is invalid.
'invalid-date' is invalid.