PHP return value within array - php

Question

I am trying to retrieve all the first objects from an array, this is how my array looks like:
Array
(
[0] => lorem;1;banana
[1] => ipsum;2;apple
[2] => dolor;3;grapefruit
[3] => sit;4;pineapple;
[4] => amet;5;orange
)
I want it to return a certain value of that and store it in a variable, so that I can get all the fruit names, for example. Any way to do this?

Answer 1

You can use array_map:
$fruits = array_map(function($item) {
$arr = explode(';', $item);
return $arr[2];
}, $array);
var_dump($fruits);

Answer 2

Assuming the fruits always come last and may or may not have a trailing semicolon, you can use
preg_replace — Perform a regular expression search and replace
Example:
$data = [
'lorem;1;banana',
'ipsum;2;apple',
'dolor;3;grapefruit',
'sit;4;pineapple;',
'amet;5;orange'
];
$fruits = preg_replace('#.+;(.+?)[;]*$#', "$1", $data);
print_r($fruits);
The pattern means match everything up and including to a semicolon (greedy), then capture the content up to the end ending with or without a semicolon.
Output:
Array
(
[0] => banana
[1] => apple
[2] => grapefruit
[3] => pineapple
[4] => orange
)

Answer 3

You can use array_walk_recursive function and change your array item as per requirement.
use following code which will give you appropriate output:
$test = array(0 => 'lorem;1;banana', 1 => 'ipsum;2;apple', 2 => 'dolor;3;grapefruit',3 => 'sit;4;pineapple;',4 => 'amet;5;orange');
array_walk_recursive($test, 'test');
function test(&$item, $key)
{
$itemArray = explode(';', $item);
$item = $itemArray[2];
}

Answer 4

For the sake of completeness, those strings can be easily parsed as csv with str_getcsv
$a = array(
'lorem;1;banana',
'ipsum;2;apple',
'dolor;3;grapefruit',
'sit;4;pineapple;',
'amet;5;orange'
);
foreach($a as $line){
$csvString = str_getcsv($line,';');
$fruits[] = $csvString[2];
}
print_r($fruits);
Will output
Array
(
[0] => banana
[1] => apple
[2] => grapefruit
[3] => pineapple
[4] => orange
)