I am getting some data out of mysql into an array like this
array(
[0] = array(
'code' => '123456',
'title' => 'something',
'price' => '2.00',
'other_value' => '555555'
),
[1] = array(
'code' => '123456',
'title' => 'something',
'price' => '2.00',
'other_value' => '666666'
),
[2] = array(
'code' => '234567',
'title' => 'something else',
'price' => '3.00',
'other_value' => '333333'
),
[3] = array(
'code' => '345678',
'title' => 'another thing',
'price' => '4.00',
'other_value' => NULL
),
)
what i need to do is for each row, if the key code appears more than once, merge the rows into one but create a new array for the other_value like so
array(
[0] = array(
'code' => '123456',
'title' => 'something',
'price' => '2.00',
'other_value' => array(
[0] => '555555',
[1] => '666666'
)
),
[1] = array(
'code' => '234567',
'title' => 'something else',
'price' => '3.00',
'other_value' => '333333'
),
[2] = array(
'code' => '345678',
'title' => 'another thing',
'price' => '4.00',
'other_value' => NULL
),
)
What is the best way to achieve this?
I did think about looping over the each row and checking for existence of thtat key/value then do something if it exists.
Santiago Trujillo
@AdRock i hope you want to merge array in case of when 'code' will be same, if this is so then try below one:
<?php
$arr = array(
array(
'code' => '123456',
'title' => 'something',
'price' => '2.00',
'other_value' => '555555'
),
array(
'code' => '123456',
'title' => 'something',
'price' => '2.00',
'other_value' => '666666'
),
array(
'code' => '234567',
'title' => 'something else',
'price' => '3.00',
'other_value' => '333333'
),
array(
'code' => '345678',
'title' => 'another thing',
'price' => '4.00',
'other_value' => NULL
)
);
echo "<pre>";
print_r($arr);// array before
$isExist = array();
foreach($arr as $key => $value){
if(in_array($value["code"], $isExist)){
$getKey = array_search($value["code"], $isExist);
$arr[$getKey]["other_value"] = array($arr[$getKey]["other_value"], $value["other_value"]);
unset($arr[$key]);
}
else{
$arr[$key] = $value;
}
$isExist[$key] = $value["code"];
}
echo "<pre>";
print_r(array_values($arr));// array after
?>
The approach that I would suggest is to loop through the array and store the value of code into a new array and store the entire result set into a new array. With each iteration, check whether the value is present or not in the code value stored array. And if value found then in that case, get the key of the code array and use the same key for the result array and store it inside the other_value. Hope it makes sense.
Looping over the array and creating a new array using the 'code' values as keys might be the simplest method. In that case you can check if the key allready exists.
$new_array=array();
foreach($array as $part){
$code_as_key = $part['code'];
//if code allready in the new array, just add a new value
if( isset($new_array[$code_as_key]) ){
$new_array[$code_as_key]['other_value'][] = $part['other_value'];
}
//else add the new code
else{
$new_array[$code_as_key]=$part;
}
}
//re-index the new array, starting from key 0
$new_array=array_values($new_array);