Display an Array in a Readable/Hierarchical Format

Display an array in a readable/hierarchical format

Try this:

foreach($data[0] as $child) {
   echo $child . "\n";
}

in place of print_r($data)

How can I display an array in a readable format?

There isn't much to say, just loop through the array and show the values. This works for variable number of items

foreach($result as $r){
    echo $r."<br>";
}

Since you had difficulties doing such thing, I suggest you to study about the basics of the language (IF, lopps, variables, etc) - maybe that's what you are doing, IDK. Foreach and More.

How to output (to a log) a multi-level array in a format that is human-readable?

If you need to log an error to Apache error log you can try this:

error_log( print_r($multidimensionalarray, TRUE) );

Is there a pretty print for PHP?

Both print_r() and var_dump() will output visual representations of objects within PHP.

$arr = array('one' => 1);
print_r($arr);
var_dump($arr);

Flat PHP Array to Hierarchy Tree

You should use recursion.

Here an exemple of code:

$datas = array(
    array('id' => 1, 'parent' => 0, 'name' => 'Page 1'),
    array('id' => 2, 'parent' => 1, 'name' => 'Page 1.1'),
    array('id' => 3, 'parent' => 2, 'name' => 'Page 1.1.1'),
    array('id' => 4, 'parent' => 3, 'name' => 'Page 1.1.1.1'),
    array('id' => 5, 'parent' => 3, 'name' => 'Page 1.1.1.2'),
    array('id' => 6, 'parent' => 1, 'name' => 'Page 1.2'),
    array('id' => 7, 'parent' => 6, 'name' => 'Page 1.2.1'),
    array('id' => 8, 'parent' => 0, 'name' => 'Page 2'),
    array('id' => 9, 'parent' => 0, 'name' => 'Page 3'),
    array('id' => 10, 'parent' => 9, 'name' => 'Page 3.1'),
    array('id' => 11, 'parent' => 9, 'name' => 'Page 3.2'),
    array('id' => 12, 'parent' => 11, 'name' => 'Page 3.2.1'),
    );

function generatePageTree($datas, $parent = 0, $depth=0){
    $ni=count($datas);
    if($ni === 0 || $depth > 1000) return ''; // Make sure not to have an endless recursion
    $tree = '<ul>';
    for($i=0; $i < $ni; $i++){
        if($datas[$i]['parent'] == $parent){
            $tree .= '<li>';
            $tree .= $datas[$i]['name'];
            $tree .= generatePageTree($datas, $datas[$i]['id'], $depth+1);
            $tree .= '</li>';
        }
    }
    $tree .= '</ul>';
    return $tree;
}

echo(generatePageTree($datas));

You can test it at: http://phpfiddle.org/main/code/1qy-5fj

Or if you want the exact format:

function generatePageTree($datas, $parent = 0, $depth = 0){
    $ni=count($datas);
    if($ni === 0 || $depth > 1000) return ''; // Make sure not to have an endless recursion
    $tree = '';
    for($i=0; $i < $ni; $i++){
        if($datas[$i]['parent'] == $parent){
            $tree .= str_repeat('-', $depth);
            $tree .= $datas[$i]['name'] . '<br/>';
            $tree .= generatePageTree($datas, $datas[$i]['id'], $depth+1);
        }
    }
    return $tree;
}

The test: http://phpfiddle.org/main/code/jw3-s1j

How to refer to data in an array (php/json)

 array(2) {

        ["ok"]=> bool(true) 
        ["result"]=> array(1) 
        { 
            [0]=> array(2) 
                { 
                    ["update_id"]=> int(44893465) 
                    ["message"]=> array(5) 
                        { 
                            ["message_id"]=> int(16) 
                            ["from"]=> array(3) 
                            { 
                                ["id"]=> int(29595794) 
                                ["first_name"]=> string(3) "Bob" 
                                ["username"]=> string(14) "Bobo" 
                            } 
                            ["chat"]=> array(3) 
                            { 
                                ["id"]=> int(29595794) 
                                ["first_name"]=> string(3) "Bob" 
                                ["username"]=> string(14) "Bobo" 
                            } 
                            ["date"]=> int(1435354253) 
                            ["text"]=> string(7) "/q 3.33" 
                        } 
                } 
        } 
    }

You are using wrong array index. $data[1][0]["username"]; not exists.

$data["result"][0]["message"]["from"]["username"]; 
$data["result"][0]["message"]["chat"]["username"]; 

This will give you the proper username

PHP - search for a key value and then find the value of another key in the same object subarray

There is a lot of ways to skin this cat... this is probably the most straight forward

function getFirstValueByFieldId($fieldId, $Arraytosearch){
    foreach($Arraytosearch["fields"] as $textitem){
        if ($textitem->__attributes["field_id"] == $fieldId){
            return $textitems->__attributes["values"][0]["value"];

        }
    }   
}

to Use in your case would be

echo getFirstValueByFieldId("37325091", $Arraytosearch);

Basically it walks the elements in the fields array and returns the value in the first associated value in the values array where field_id is equal to the parameter of the function.

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