strtotime

Function • Params and return types changed in PHP 8.0

Parse about any English textual datetime description into a Unix timestamp.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

strtotime Function synopsis

strtotime(string $datetime, ?int $baseTimestamp = null): int|false

Parameters

$datetime

Typestring

A date/time string. Valid formats are explained in Date and Time Formats.

$baseTimestamp

OptionalType?intDefault valuenull

The timestamp which is used as a base for the calculation of relative dates.

Return value

Typeint|false

Returns a timestamp on success, false otherwise.

Changes to the strtotime Function

PHP 8.0

  • Return type added: int|false
  • Parameter name of parameter #1 changed: $time to $datetime
  • Parameter type added for parameter #1 ($datetime): string
  • Parameter name of parameter #2 changed: $now to $baseTimestamp
  • Parameter type added for parameter #2 ($baseTimestamp): ?int
  • Parameter default value added for position #2 ($baseTimestamp): null
- strtotime($time, $now)
+ strtotime(string $datetime, ?int $baseTimestamp = null): int|false

strtotime Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes