How to get specific part of a strings from a string using php?

Question

I have a RGBA color in this format:

RGBA:1.000000,0.003922,0.003922,0.003922

How can I separate each value from this string such as:

var alpha = 1.000000;
var red = 0.003922;
var green = 0.003922;
var blue = 0.003922;

I want to do this in php.

@sanketh: Don't use split(). It's deprecated. Use explode() instead. — Amal
– Amal, Commented Apr 10, 2014 at 19:03

Amal · Accepted Answer · 2014-04-10 19:05:01Z

2

Split the string into two parts with : as the delimiter, take the second part, and split the result again with , as the delimiter. Assign the values to variables. All this could be done in one line, as follows:

list($alpha, $red, $green, $blue) = explode(',', explode(':', $str, 2)[1]);

Output:

string(8) "1.000000"
string(8) "0.003922"
string(8) "0.003922"
string(8) "0.003922

Demo

answered Apr 10, 2014 at 19:05

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Amal

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kidz · Accepted Answer · 2014-04-10 19:05:17Z

0

Code snippet should be like this:

$rgba = "1.000000,0.003922,0.003922,0.003922";
$rgba = explode(',', $rgba);
list($red, $green, $blue, $alpha) = $rgba;

answered Apr 10, 2014 at 19:05

kidz

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Comments

Abhik Chakraborty · Accepted Answer · 2014-04-10 19:11:33Z

0

Another way using regex is

$str = 'RGBA:1.000000,0.003922,0.003922,0.003922';
preg_match_all("/(\d+\.+\d+)/", $str, $output_array);

list($alpha, $red, $green, $blue) = $output_array[1] ;

https://eval.in/135090

answered Apr 10, 2014 at 19:11

Abhik Chakraborty

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