Question

I need help parsing a string.

The string is:

DTSTART;VALUE=DATE:**20120201** DTEND;VALUE=DATE:20120202 RRULE:FREQ=**DAILY**;INTERVAL=**2**;UNTIL=**20120331**

(the variables I need have ** on either side of them)

I need to assign the values in bold to the following variables (in the same order):

$startdate 
$frequency
$interval
$enddate

All help is appreciated. Thanks!

EDIT: the actual string is:

DTSTART;VALUE=DATE:20120201 DTEND;VALUE=DATE:20120202 RRULE:FREQ=DAILY;INTERVAL=2;UNTIL=20120331

I only added ** on either side of the variables to show which ones I wanted (as bold highlighting does not work in the code snippet)

Answer 1

You can do it like this :

<?php
$s = "DTSTART;VALUE=DATE:**20120201** DTEND;VALUE=DATE:20120202 RRULE:FREQ=**DAILY**;INTERVAL=**2**;UNTIL=**20120331**";

preg_match(
    '/^DTSTART;VALUE=DATE:\*\*(\d+)\*\*\s+DTEND;VALUE=DATE:(\d+)\s+RRULE:FREQ=\*\*(\w+)\*\*;INTERVAL=\*\*(\d+)\*\*;UNTIL=\*\*(\d+)\*\*/',
    $s,
    $matches
);

print_r($matches);
?>

—–8<——————————————————————————–

php file.php

Array
(
    [0] => DTSTART;VALUE=DATE:**20120201** DTEND;VALUE=DATE:20120202 RRULE:FREQ=**DAILY**;INTERVAL=**2**;UNTIL=**20120331**
    [1] => 20120201
    [2] => 20120202
    [3] => DAILY
    [4] => 2
    [5] => 20120331
)