Extracting value from multidimensional array - php

Question

$arrayDif = array();
$arrayDif[] = array('employer' => $employer,
'comment' => $comment,
'value' => $resultValue);
Filling in from a loop.
Below is the array that I have filled up. I need to be able to find a match by the 'employer' and 'comment' and extract the value, so I can re-update this value.
Array
(
[0] => Array
(
[employer] => Albury-Wodonga
[comment] => allOtherMembers
[value] => 7
)
[1] => Array
(
[employer] => Albury-Wodonga
[comment] => associateMembers
[value] => 1
)

Answer 1

One command to extract and re-update the value, I suggest to use foreach loop
<?php
$arrayDif = array();
$arrayDif[] = array('employer' => "AAA", 'comment' => "comment 1", 'value' => "1");
$arrayDif[] = array('employer' => "BBB", 'comment' => "comment 2", 'value' => "2");
$arrayDif[] = array('employer' => "CCC", 'comment' => "comment 3", 'value' => "3");
// function for setting the value or returning the value
// notice the $array here is a reference to the real array
function func(&$array, $employer, $comment, $value = ''){
// $v is also a reference
foreach ($array as $k => &$v) {
if($v['employer'] == $employer && $v['comment'] == $comment) {
if(empty($value)) {
return $v['value'];
} else {
$v['value'] = $value;
}
}
}
return "Not Found.";
}
//update
func($arrayDif, 'AAA', 'comment 1', "123123");
//search
echo func($arrayDif, 'AAA', 'comment 1');
?>

Answer 2

Not sure if this is what you are looking for but here you go. I would use a function and simple loop.
<?php
$arrayDif = array();
$arrayDif[] = array(
array('employer' => "Albury-Wodonga", 'comment' => "allOtherMembers", 'value' => "1 star"),
array('employer' => "Employer2", 'comment' => "Good Job", 'value' => "2 stars"),
array('employer' => "Employer3", 'comment' => "Smart", 'value' => "3 stars")
);
// Function for searching the array for the matches and returning the value of the match.
function SearchMe($array, $searchEmployer, $searchComment){
for($i = 0; $i < count($array); $i++){
for($j = 0; $j < count($array[$i]); $j++){
if(
$array[$i][$j]["employer"] == $searchEmployer &&
$array[$i][$j]["comment"] == $searchComment
){
return $array[$i][$j]["value"];
}
}
}
return "No Match";
}
echo SearchMe($arrayDif, "Albury-Wodonga", "allOtherMembers");
?>