CODEWITHSUNDEEP
phpmultidimensional-array
Jeff Solomon
Jeff Solomon

Reputation: 473

Looping Through Multi-Dimensional Array in PHP

I've looked up a bunch of similar examples but still can't seem to figure out how loop through and echo the values from this array. Should be simple, but I'm dense. Help is appreciated.

array(2) { ["legend_size"]=> int(1) ["data"]=> array(2) { ["series"]=> array(2) { [0]=> string(10) "2014-01-17" [1]=> string(10) "2014-01-18" } ["values"]=> array(1) { ["Begin Session"]=> array(2) { ["2014-01-17"]=> int(1073) ["2014-01-18"]=> int(1122) } } } }

I'm trying to return the int values for the "values" array.

Upvotes: 0

Views: 96

Answers (3)

SuperTron
SuperTron

Reputation: 4253

If the array structure is not going to change, and you just want the int values inside values, you could do the following:

//Create array
$some_array = array( 
    "legend_size" => 5, 
    "data" => array( 
        "series" => array(0 => "2014-01-17", 1 => "2014-01-18" ) 
        "values" => array(
            "Begin Session" => array("2014-01-17" => 1000, "2014-01-18" => 1000)
        )
    )
);

//Get values
foreach($some_array['data']['values'] as $key => $value)
{
    if(is_array($value))
    {
        echo $key . " => ";

        foreach($value as $key2 => $value2)
        {
             echo "   " . $key2 . " => " . $value2;
        }
    }

    else
    {
        echo $key . " => " . $value;
    }
}

This will give you an output like this:

Begin Session =>
    2014-01-17 => 1000
    2014-01-18 => 1000

Upvotes: 0

Josh Austin
Josh Austin

Reputation: 776

Given the name of your array is, for the sake of example, $mdarr, and that the construction of the array is going to be roughly the same every time, it is as simple as:

$values_i_want = $mdarr['data']['values'];

If the values array you are looking for is going to be in different array depths in different cases, recursion combined with type checking will do the trick:

//returns values array or nothing if it's not found
function get_values_array($mdarr) {
    foreach ($mdarr as $key => $val) {
        if ($key == 'values') {
            return $val;
        } else if (is_array($val)) {
            return get_values_array($val);
        }
    }
}

Upvotes: 1

emsoff
emsoff

Reputation: 1605

Use the following as a base. I reconstructed your array so I could mess around with it.

$turtle = array('legend_size' => 'int(1)', 'data' =>array('series' => array('string(10) "2014-01-17"', '[1]=> string(10) "2014-01-18"'), 'values' => array('Begin_Session' =>array('2014-01-17' => 'int(1073)', '2014-01-18' => 'int(1122)'))));

// This is where you "navigate" the array by using [''] for each new array you'd like to traverse. Not sure that makes much sense, but should be clear from example.
foreach ($turtle['data']['values']['Begin_Session'] as $value) {
    $match = array();
// This is if you only want what's in the parentheses. 
    preg_match('#\((.*?)\)#', $value, $match);
    echo $match[1] . "<br>";
}

Upvotes: 0

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