Im trying to get the individual date elements out of a string (it is a string, but is out of mysql, but I cannot access the MySQL date bit anymore, so can only use it as a string).

What I thought Id do is split the string using - as the split point and then pull in the array elements:-
$strDate = "2013-05-20";
echo "Year - " . preg_split('/-/', $_GET['orgValue'])[0] . "\n";
echo "Month - " . preg_split('/-/', $_GET['orgValue'])[1] . "\n";
echo "Day - " . preg_split('/-/', $_GET['orgValue'])[2] . "\n";

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However all I get is:-
Parse error: syntax error, unexpected '[', expecting ',' or ';'

Any ideas what Im doing wrong?
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Ray PaseurConnect With a Mentor Commented:
If you're working with dates, and it looks that way from the test data, this article will help answer many questions.

You might also want to create the SSCCE for something like this.  It's not clear to me where the GET request variable comes into play.


<?php // RAY_temp_tonelm54.php
echo '<pre>';

$strDate   = "2013-05-20";
$timestamp = strtotime($strDate);
echo PHP_EOL . "YEAR: "  . date('Y', $timestamp);
echo PHP_EOL . "MONTH: " . date('m', $timestamp);
echo PHP_EOL . "DAY: "   . date('d', $timestamp);

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The other answers are also accurate and informative, too!
käµfm³d 👽Connect With a Mentor Commented:
Why use preg_split? Would explode not suffice?


echo "Year - " . explode('-', $_GET['orgValue'])[0] . "\n";

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gr8gonzoConnect With a Mentor ConsultantCommented:
1. Don't use preg_split unless your delimiter is a regular expression. Use explode() instead - it's MUCH MUCH more efficient for what you're doing:

$pieces = explode('-', $value)

2. PHP has trouble evaluating the results of a function call as an array, so you have to do it in two steps:
$pieces = explode("-",$_GET["orgValue"]);
echo "Year - " . $pieces[0] . "\n";

3. list() is your friend when using explode:
list($year,$month,$day) = explode("-",$_GET["orgValue"]);
echo "Year - " . $year . "\n";
echo "Month - " . $month . "\n";
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käµfm³d 👽Commented:
Don't use preg_split unless your delimiter is a regular expression.
Technically speaking, any single character can be considered a regular expression  ; )
(Separating my post into two pieces, since I figure that someone else is going to swoop in with a quick answer while I try to type up additional suggestions)

3. Familiarize yourself with strtotime(), which will turn a string like "2013-05-13" into a UNIX timestamp, which you can then pass to date() to get any date/time portion you want:

$timestamp = strtotime($strDate);
echo "$strDate is a " . date("l",$timestamp) . ", falls in the month of " . date("F",$timestamp) . ", in week #".date("W",$timestamp)." of the year " . date("Y",$timestamp);

This should make your date manipulation/coding much easier/more flexible.

4. To be clear on why explode() is better than preg_split() - whenever you use a preg_ function, PHP loads up a big, separate library to help it process those regular expressions. It takes up memory and a little bit of loading time. It's like renting a huge moving truck so that you can move a pillow.

When you are creating small pieces of code that will only be accessed by a couple of people, it doesn't seem like much of a difference, but when you start coding large applications, the negative effect can multiply.

5. For the sake of proper terminology, use the term "delimiter", not "split point" - you'll find that "delimiter" is used everywhere else in the coding world, so it'll make your life that much easier. :)
> Technically speaking, any single character can be considered a regular expression  ; )

Technically, yes. That's what I was getting to with my "moving truck" analogy just now. :)
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