filter data from an array - php - php

Question

I have an array with the friends data including their name, id, gender. I want to extract the data from array which have opposite gender.
For example -
My gender is "Male"
Returned data -
[118]=> object(stdClass)#121 (3) {
["name"]=> string(9) "Rawa Su"
["gender"]=> string(4) "male"
["id"]=> string(15) "1000019100"
}
[119]=> object(stdClass)#122 (3) {
["name"]=> string(11) "Anil Gaj"
["gender"]=> string(4) "male"
["id"]=> string(15) "1000034656"
}
[120]=> object(stdClass)#123 (3) {
["name"]=> string(13) "Ankur Tri"
["gender"]=> string(4) "male"
["id"]=> string(15) "1000022271"
}
[121]=> object(stdClass)#124 (3) {
["name"]=> string(13) "Chuck Ell"
["gender"]=> string(4) "male"
["id"]=> string(15) "10000185038"
}
[122]=> object(stdClass)#125 (3) {
["name"]=> string(15) "Madhuri Tat"
["gender"]=> string(6) "female"
["id"]=> string(15) "1000880932"
}
Now i want to randomly fetch the data which have gender = female. I don't have any clue how this can be done. Any help would be appreciated. Thank you.

Answer 1

Okay lets say your array with all of the data is named $data:
$res = array();
foreach($data as $person) {
if(strcasecmp($person['gender'], 'female') == 0)
$res[] = $person;
}
Now you have a new array called $res which contains all females.
Nevertheless, i would filter the raw data during the sql fetch from the database,
this should be the same effort and give more performance in a long time view.
If you now want to have one of the females randomly, do something like this:
$number_of_persons = count($res);
$random_female = $res[rand(0, $number_of_persons-1)];
Why -1?
Arrays start at index 0, so you need a -1 at the total amount of persons.