CODEWITHSUNDEEP
phparraysregex
ABOO
ABOO

Reputation: 145

Check a string to see if it contains an array, if so output the value from the array into a new variable

I'm fairly new to PHP and struggling to understand the best way to do this. I have an array:

$colours= array('Yellow', 'Red', 'Blue');

I now need to check a string against this array and if one of the colors exists in the string we then need to output the result into a new variable. Here's a sample string:

$string= "Black & Aztec Blue";

So in this case the desired output would be "Blue". Or, as suggested below both values could be saved in a second array? Has anyone done something like this before?

All help appreciated.

Upvotes: 2

Views: 126

Answers (1)

Barmar
Barmar

Reputation: 780818

Create a regexp that matches any of the words using alternation |.

$regexp = '/\b(' . implode('|', $colours) . ')\b/'; // $regexp = '/\b(Yellow|Red|Blue)\b/'
if (preg_match($regexp, $string, $match)) {
    $found_word = $match[0];
}

\b matches word boundaries, so this will not match if the strings are adjacent like BlackBlue. Take them out if you want to match the colours in this case.

Upvotes: 2

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