Array get path

With this function you can find values in an array by
an path like "abc/def/ghi".
This function was an idea, I had a few months ago...

Snippet information

Author:
Jonas John

License:
Public Domain

Language:
PHP

Created:
04/27/2006

Updated:
04/27/2006

Tags:
array functions

function ArrayGetPath($data, $path, &$result){
 
    $found = true;
 
    $path = explode("/", $path);
 
    for ($x=0; ($x < count($path) and $found); $x++){
 
        $key = $path[$x];
 
        if (isset($data[$key])){
            $data = $data[$key];
        }        
        else { $found = false; }
    }
 
    $result = $data;
 
    return $found;
}
 
// Please look at the examples (below)

Show example

// test data:
 
$tree_data = array(
    'red' => array(
        'max' => 100, 
        'min' => 0
    ),
    'blue' => 'water',
    'green' => 'flowers',
    'grey' => array(
        'light' => array('eeeeee', 'e7e7e7'),
        'dark' => array('cccccc')
    ),
    7 => 'foobar'
);
 
 
// path tests:
 
$path_tests = array(
    'red/max', 
    'foo/bar',
    'grey/light/1',
    'grey/dark',
    'grey/dark/1',
    'red/min',
    'red/min/1',
    'abc/def/ghi',
    '7',
    'grey'
);
 
 
// loop trough all path tests:
for ($x=0; $x < count($path_tests); $x++){
 
    $test_path = $path_tests[$x];
 
    // test path:
    if(ArrayGetPath($tree_data, $test_path, $result)){
        print "The array path '$test_path' was found, showing content:<br/>\n<pre>";
        print_r($result);
        print "</pre>";
    }
    else { print "The array path '$test_path' was not found!<br/>\n"; }
 
    print "<br/>\n";
 
}

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