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@ 2019-07-07T10:58:44Z

<?php

$array = [
        (object)['Dep_name' => 'Accounting and Finance', 'dep_id' => 1, 'dep_parent_id' => 0],
        (object)['Dep_name' => 'Human-Recources', 'dep_id' => 2, 'dep_parent_id' => 0],
        (object)['Dep_name' => 'IT', 'dep_id' => 3, 'dep_parent_id' => 0, 'children' => [
                 (object)['Dep_name' => 'Network', 'dep_id' => 5, 'dep_parent_id' => 3],
                 (object)['Dep_name' => 'Web Development', 'dep_id' => 6, 'dep_parent_id' => 3, 'children' => [
                     (object)['Dep_name' => 'Front-End', 'dep_id' => 7, 'dep_parent_id' => 6],
                     (object)['Dep_name' => 'Back-End', 'dep_id' => 7, 'dep_parent_id' => 6],
                     ]
                 ],
            ]
        ],
        (object)['Dep_name' => 'Marketing', 'dep_id' => 4, 'dep_parent_id' => 0, 'children' => [
                 (object)['Dep_name' => 'web-marketing', 'dep_id' => 9, 'dep_parent_id' => 4],
            ]
        ]
    ];

function printTree($array) {
    $output = "<ul>\n";
    foreach ($array as $a) {
        $output .= "<li>".$a->Dep_name."</li>\n";
        
        if (isset($a->children)) {
            $output .= printTree($a->children);
        }
    }
    $output .= "</ul>\n";
    return $output;
}
echo printTree($array);

Output for git.master, git.master_jit: /bin/php-git-master: error while loading shared libraries: libonig.so.5: cannot open shared object file: No such file or directory
Process exited with code 127.
Output for rfc.property-hooks: <ul> <li>Accounting and Finance</li> <li>Human-Recources</li> <li>IT</li> <ul> <li>Network</li> <li>Web Development</li> <ul> <li>Front-End</li> <li>Back-End</li> </ul> </ul> <li>Marketing</li> <ul> <li>web-marketing</li> </ul> </ul>

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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