(PHP 5 >= 5.3.0, PHP 7)

DateInterval::createFromDateStringSets up a DateInterval from the relative parts of the string


public static DateInterval::createFromDateString ( string $datetime ) : DateInterval|false

Uses the normal date parsers and sets up a DateInterval from the relative parts of the parsed string.

Elenco dei parametri


A date with relative parts. Specifically, the relative formats supported by the parser used for strtotime() and DateTime will be used to construct the DateInterval.


Example #1 Parsing valid date intervals

// Each set of intervals is equal.
$i = new DateInterval('P1D');
$i DateInterval::createFromDateString('1 day');

$i = new DateInterval('P2W');
$i DateInterval::createFromDateString('2 weeks');

$i = new DateInterval('P3M');
$i DateInterval::createFromDateString('3 months');

$i = new DateInterval('P4Y');
$i DateInterval::createFromDateString('4 years');

$i = new DateInterval('P1Y1D');
$i DateInterval::createFromDateString('1 year + 1 day');

$i = new DateInterval('P1DT12H');
$i DateInterval::createFromDateString('1 day + 12 hours');

$i = new DateInterval('PT3600S');
$i DateInterval::createFromDateString('3600 seconds');

Valori restituiti

Returns a new DateInterval instance on success, o false in caso di fallimento.

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User Contributed Notes 1 note

11 years ago
DateInterval::createFromDateString ( string $time )

When the manual says "Uses the normal date parsers" it means that this function cannot take $time = ISO8601 strings like "P7D".  If you want to use those, you must use the constructor.
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