Search for matching partial values in an array [duplicate] - php

Question

This question already has answers here:
Filter multidimensional array based on partial match of search value
(3 answers)
startsWith() and endsWith() functions in PHP
(34 answers)
Closed 1 year ago.
$target = 285
$array = array("260-315", "285-317", "240-320")
I need to search the array for the value that begins with the $target value. Also, the $target value will not be limited to 3 digits so I'm searching for a match of the digits before the hyphen.
So I want to end up with
$newTarget = 285-317
$finalTarget = 317
Note: I'm only searching for a match of the digits before the hyphen so "200-285" would not be a match

Answer 1

What you asked me in comment(below my answer),for that you can do it like below (My changed answer):-
<?php
$target = 285;
$array = array('260-315', '285-317', '240-320',"200-285");
foreach($array as $key=>$value){
if($target ==explode('-',$value)[0]){
echo $newTarget = $array[$key];
echo PHP_EOL;
echo $finalTarget = explode('-',$array[$key])[1];
}
}
?>
https://eval.in/702862

Answer 2

I can help you filter your array down to members that start with your target.
You can then split the return values to get to your final target.
<?php
$target = '285';
$array = array('260-315', '285-317', '240-320');
$out = array_filter($array, function($val) use ($target) {
return strpos($val, $target) === 0;
});
var_export($out);
Output:
array (
1 => '285-317',
)

Answer 3

<?php
$target = 285;
$arrStack = array(
"260-315",
"285-317",
"240-320",
);
$result = preg_grep('/'.$target.'/',$arrStack);
echo "<pre>"; print_r($result); echo "</pre>";

Answer 4

Something like this could work for you ? array_filter
$target = 285;
$array = array("260-315", "285-317", "240-320");
$newTarget = null;
$finalTarget = null;
$filteredArray = array_filter($array, function($val) use ($target) {
return strpos($val, $target."-") === 0;
});
if(isset($filteredArray[0])){
$newTarget = $filteredArray[0];
$finalTarget = explode($filteredArray[0], "-")[1];
}

Answer 5

Instead of finding what matches, you could exclude what doesn't match with array_filter.
For example:
$target = 285;
$original = array('260-315', '285-317', '240-320');
$final = array_filter($original, function ($value) use ($target) {
// Check if match starts at first character. Have to use absolute check
// because no match returns false
if (stripos($value, $target) === 0) {
return true;
}
return false;
});
The $final array will be a copy of the $original array without the non-matching values.
To output the first digits, you can then loop through your array of matches and get the value before the hyphen:
foreach ($final as $match) {
$parts = explode('-', $match);
if (is_array($parts) && ! empty($parts[0])) {
// Show or do something with value
echo $parts[0];
}
}

Answer 6

Use array_filter:
Example:
$target = '260';
$array = ['260-315', '285-317', '240-320'];
$matches = array_filter($array, function($var) use ($target) { return $target === explode('-', $var)[0]; });
print_r($matches);
Output:
Array
(
[0] => 260-315
)