PHP - Change Array Values To Keys

I've figured out how to change all of an arrays keys to lowercase:


 $lower_case_array = array_change_key_case($mixed_array, CASE_LOWER); 



But I can't seem to find a way to change the values of an array to lower case. Is there a simple way to do this?

Good Evening,

I'm having no luck in something that I'm sure is incredibly simply...

If I have an array like the following...
Code: [Select]
$array = array(15,22,0,43,0,6);How can I find and replace all the zeros with a one?

Regards, Ace

how to connect juice and 1 and milk and 3 and cola and 2? and then sort it by the numbers from high to low?

$a=array('juice','milk','cola');
$a2=array('1','3','2');

atm i have this in a function:

Code: [Select]
$returnInfo = array();

$returnInfo["totalWords"] = $totalWords;
$returnInfo["uniqueWords"] = count($uniqueWords);
$returnInfo["positiveWords"] = $positiveWords;
$returnInfo["negativeWords"] = $negativeWords;
$returnInfo["rating"] = $mappedrating;

return $returnInfo;

If i recursive print it it says Array instand of my expected values.

p.s., i have found examples where the array get's created in 1 line with all there values but i prefer not to do that since it will be a very long line.

This:
Code: [Select]
echo "<pre>";
print_r($torrent->content());
echo "</pre>";
Returns:
Code: [Select]
Array
(
    [Eureka.S05E01.HDTV.XviD-ASAP\Eureka.S05E01.HDTV.XviD-ASAP.avi] => 367011826
    [Eureka.S05E01.HDTV.XviD-ASAP\eureka.s05e01.hdtv.xvid-asap.nfo] => 4798
    [Eureka.S05E01.HDTV.XviD-ASAP\Sample\eureka.s05e01.hdtv.xvid-asap.sample.avi] => 7883092
)
Needs to be inserted to MySQL like:


In other words, the array $torrent->content() needs to be inserted to MySQL as new lines at columns "filename" and "size".

Please help me..

Is it possible to create a PHP array that contains only keys?

	array
	1
	3
	5
	6
	7
	

 

I have a query that returns row ID's that I want to put into an array to do some work.  There is no real concept of a "value" - I just need to store a list of the database table rows that i want and that's it!

 

Edited February 16 by SaranacLake

Hello

I am having some trouble with array_keys

I have an array for which I want to return all the keys based on value X

This is my code:

Code: [Select]

$depth = array_keys(X', $Array);

echo print_r ($depth,1);



I have checked the content of my array $Array and it contains at least 1 instance of 'X' but I am getting nothing when I do the print_r

Any suggestions would be appreciated

Thanks

I have an array of type
Code: [Select]
Array ( [2] => Array ( [name] => Shelby Baptist Medical Ctr [city] => Alabaster ) [1] => Array ( [name] => Andalusia Regional Hospital [city] => Andalusia ) [0] => Array ( [name] => Long Term Hospital of Anniston [city] => Anniston ))
How can sort the keys of an array but there content remains the same so that they are like
Code: [Select]
Array ( [0] => Array ( [name] => Shelby Baptist Medical Ctr [city] => Alabaster ) [1] => Array ( [name] => Andalusia Regional Hospital [city] => Andalusia ) [2] => Array ( [name] => Long Term Hospital of Anniston [city] => Anniston ))
Can someone please point me if there is any func. for this

Hi ..
i have an array format like (mysql result array)
$new_array=Array ( [0] => Array ( [quantity] => 5 )  [1] => Array ( [quantity] => 25 )  [2] => Array ( [quantity] => 20 ) )

I have to convert this array into the following format
$new_array['quantity'][0]=5
$new_array['quantity'][1]=25
$new_array['quantity'][2]=20


How to convert this array format using any standard array method.

is there a way to reset the array keys? to 0,1,2,3,...

also for example that i have something like this:

$array['dog']='dog';
$array['mouse']='mouse';
$array['cat']='cat';

and i want it like this:

$array[0]='dog';
$array[1]='mouse';
$array[2]='cat';

is there a function for that already in php?

I have a sequential multidimensional array with many outer rows where all the inner arrays have the same number of elements as another sequential array which represents metadata of the first array's inner arrrays.

$keys: 

["time","system1_typeA","system2_typeA","system1_typeB","system3_typeC","system2_typeB","system1_typeC"]

$arrayValues: 

[
    ["2020-06-27 07:40:06",2.16,9.25,9.44,7.76,5.43,1.12],
    ["2020-06-27 07:40:23",2.66,8.93,4.31,6.59,8.44,3.42],
    ["2020-06-27 07:41:24",8.71,2.78,8.92,6.58,3.65,4.38],
    ["2020-06-27 07:41:58",1.86,6.36,2.65,3.99,7.25,3.32],
    ["2020-06-27 07:42:33",8.71,3.66,8.82,8.54,8.22,4.51]
]

My desired output is: 

{
    "time": ["2020-06-27 07:40:06", "2020-06-27 07:40:23", "2020-06-27 07:41:24", "2020-06-27 07:41:58", "2020-06-27 07:42:33"],
    "system1": {
        "typeA": [2.16, 2.66, 8.71, 1.86, 8.71],
        "typeB": [9.44, 4.31, 8.92, 2.65, 8.82],
        "typeC": [1.12, 3.42, 4.38, 3.32, 4.51]
    },
    "system2": {
        "typeA": [9.25, 8.93, 2.78, 6.36, 3.66],
        "typeB": [5.43, 8.44, 3.65, 7.25, 8.22]
    },
    "system3": {
        "typeC": [7.76, 6.59, 6.58, 3.99, 8.54]
    }
}

Is there much faster way to do so than the following?  I would like to use a built in function like array_combine() if possible, but grouping by system and type creates an issue.

function transform(array $keys, array $arrayValues):array {
    $map=[];
    foreach ($keys as $key) {
        $map[] = explode('_',$key);
    }
    $count=count($keys);

    $newValues=[];
    foreach ($arrayValues as $i=>$arrayValue) {
        $newValues['time'][]=$arrayValue[0];
        for ($i = 1; $i < $count; $i++) {
            $newValues[$map[$i][0]][$map[$i][1]][]=$arrayValue[$i];
        }
    }
    return $newValues;
}

 

The title makes it sound more complicated than it is.

I have a recurring function that searches for a specific value in a multi-dimensional array. When it finds it, it returns an array of the index.

For example, if it found the value at $array[1][4][2][0], it would return an array like this:
[0]=>1
[1]=>4
[2]=>2
[3]=>0

Here's the function.
Code: [Select]
<?php

// Other Code

/**
 * Find's the parent of an item
 * Unfortunately, it takes a bit more work than just using the loudspeaker at a grocery store
 * @param int $parent The parent to be searched for
 * @param array $array 
 * @param array $cur_index
 */
private function findParent($parent, $array, $cur_index)
{
    for($i = 0; $i < count($array); $i++) { // Search the array
        if($array[$i]['id'] == $parent) { // If the parent is found
            $cur_index[count($cur_index)] = $i;
            return array(true, $cur_index);
        }

        if(count($array[$i][1]) > 1) { // Call findParent again to search the child
            $cur_index[count($cur_index)] = $i;
            $found_in_child = $this->findParent($parent, $array[$i], $cur_index);
            if($found_in_child[0]) {
                return $found_in_child;
            }
        }
    }
    
    return array(false); // Return no matches
}
I need to be able to call that index using the keys from the key array (as we will call it). How can I do that?

Thank you in advance for your help.

Hi,

I have the following code that takes a list from a mySQL db and puts it into an array that shows 'gig date, venue, city' per entry: -

 
Code: [Select]
while ($row = mysql_fetch_array($result,MYSQL_ASSOC))
{

$array[] = ($row['date'].', '.$row['gl_venue'].', '.$row['gl_city']);
}

$output = json_encode($array);
this outputs JSON like so:
Code: [Select]
["06-05-2011, O'neills, Southend","07-05-2011, Power League, Peterborough","14-05-2011, Queen Victoria hall, Oundle",.......]
how do I add keys into the array so I get something like:
Code: [Select]

{"gigs":[
 { "gig": "date, venue, city",}
]}
 
at least I think so anyway!?!

What I want to do is eventually be able to parse a JSON listing into Objective-C and be able to call key/pairs into various different parts of an app.

I'm pretty new to this so any advice would be great.

Code: [Select]
array ( 0 => array ( 'id' => '6', 't' => 'Food & Beverage', ), 1 => array ( 'id' => '6', 't' => 'Food & Beverage', ), 2 => array ( 'id' => '2', 't' => 'Automotive', ), )
how to sum it, to get:

Code: [Select]
array ( 0 => array ( 'id' => '6', 't' => 'Food & Beverage', 'cnt' => '2' ), 1 => array ( 'id' => '2', 't' => 'Automotive', 'cnt' => '1' ), )