PHP equivalent of Excel vlookup on array - php

Question

After looking for a built in function in php I couldn't find a similar function to Excel's vlookup function.
I need a function that takes in an array and a lookup value and return the required info. So for example:
<?php
$baseCalculationPrice = [
0 => 50, //for values <=500 but >0
500 => 18, //for values <=3000 but >500
3000 => 15, //for values <=5000 but >3000
5000 => 14, //for values >5000
];
//Examples
$numPages = 499;
echo vlookup($numPages,$baseCalculationPrice); //should output 50
$numPages = 500;
echo vlookup($numPages,$baseCalculationPrice); //should output 50
$numPages = 501;
echo vlookup($numPages,$baseCalculationPrice); //should output 18
$numPages = 3000;
echo vlookup($numPages,$baseCalculationPrice); //should output 18
$numPages = 3001;
echo vlookup($numPages,$baseCalculationPrice); //should output 15
$numPages = 5000;
echo vlookup($numPages,$baseCalculationPrice); //should output 15
$numPages = 5001;
echo vlookup($numPages,$baseCalculationPrice); //should output 14
function vlookup($value,$array){
//magic code
return ....;
}
?>
I'm stuck even with the logic behind such a function, so any help would be great - thanks.

Answer 1

function vlookup($lookupValue,$array){
$result;
//test each set against the $lookupValue variable,
//and set/reset the $result value
foreach($array as $key => $value)
{
if($lookupValue > $key)
{
$result = $value;
}
}
return $result;
}

Answer 2

function testDeductionRate(){echo $this->deductionRate('ks',300);//zone and time are parameter for deductionRate() }
//deduction will be acted as vlookup (rangeLookup true)
function deductionRate($zone,$time){
$actualRate = 0;
$allRate = array(
'tg'=>array(0=>0,20=>200,30=>300,40=>400,50=>500),
'ks'=>array(0=>0,20=>100,30=>200,40=>300,50=>400),
'pc'=>array(0=>0,20=>50,30=>100,40=>200,50=>300)
);
if(isset($allRate[$zone])){
$rate = $allRate[$zone];
foreach($rate as $key=>$val){
if($time>=$key) $actualRate = $val;
}
}else{
return -1; //-1 means error
}
return $actualRate;
}

Answer 3

Try this if you would like to query on multi dimension associative array:
function vlookup($lookup_vakue, $lookup_array, $lookup_column, $result_column)
{
foreach ($lookup_array as $item) {
if ($item[$lookup_column] == $lookup_vakue) {
return $item[$result_column];
}
}
return false;
}
Sample Data
$data =
[
['id'=>1,'price'=>100],
['id'=>2,'price'=>200],
['id'=>3,'price'=>300]
];
Query Option
$result = vlookup('2',$data, 'id','price');
Result:
200

Answer 4

$getbase= function($amount) use ($baseCalculationPrice)
{
return (end(array_filter(
$baseCalculationPrice,function ($key) use ($amount)
{
return $key < $amount;
},
ARRAY_FILTER_USE_KEY
)));
};
amount 150 result 50
amount 1500 result 18
amount 25000 result 14