loop through array of objects

Question

I Have an array called $pages content is as follows:

Array
(
[01-about-us] => Page Object
    (
        [_uri] => about-us
        [_menuItem] => 01
        [_visable] => 1
    )

[02-contact] => Page Object
    (
        [_uri] => contact
        [_menuItem] => 02
        [_visable] => 1
    )

[_sitemap] => Page Object
    (
        [_uri] => sitemap
        [_menuItem] => 
        [_visable] => 
    )

[home] => Page Object
    (
        [_uri] => home
        [_menuItem] => 
        [_visable] => 1
    )
)

is there an easy way to loop through and get page objects by there properties ie:

<?php foreach($pages->_visible() AS $p): ?>
  <li> page </li>
<?php endforeach ?>

Do you mean you want to only fetch objects that are visible in this case? — Andris
– Andris, Commented Dec 20, 2012 at 9:58
Just loop over the array normally and use an if statement inside the loop to determine whether each page object is visible and a list element should be rendered. — Felix Kling
– Felix Kling, Commented Dec 20, 2012 at 9:59
Two things: 1: you are inconsistently spelling visible. 2: in the array you refer to visable as a field, in the foreach as a method. — Bart Friederichs
– Bart Friederichs, Commented Dec 20, 2012 at 10:07

Bart Friederichs · Accepted Answer · 2012-12-20 10:00:16Z

23

No. You will have to use an if:

foreach ($pages as $page) {
    if ($page->_visible == 1) {
        echo "<li>page</li>";
    }
}

(Note also you misspelt visible in the array, perhaps a typo?)

answered Dec 20, 2012 at 10:00

Bart Friederichs

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4 Comments

Felix Kling Over a year ago

I think the leading underscore (_...) in the output indicates private properties... I did not work a lot with PHP lately though, so I could be wrong.

Bart Friederichs Over a year ago

@FelixKling PHP has a private keyword for that. I couldn't tell if I do not have the class definition of the Page class of OP. He uses it in his own code, so I reckoned this is the way to know if a page is visible. It should probably use a method, though.

Mitchell Bray Over a year ago

perfect thanks it was just a spelling problem i thought i was going crazy.

Felix Kling Over a year ago

Ah, apparently private properties are suffixed with :private: codepad.org/6clkYH0u. nvm then :)

Andris · Accepted Answer · 2012-12-20 10:20:19Z

6

Or you can utilize PHP's array_filter function:

$pagesVisible = array_filter($pages, function($page) {
    return (bool) $page->_visible;
});

foreach ($pagesVisible as $key => $page) {
    print '<li>' . $key . '</li>';
}

Or shorthand it to:

$filter = function($page) {
    return (bool) $page->_visible;
};
foreach (array_filter($pages, $filter) as $key => $page) {
    print '<li>' . $key . '</li>';
}

edited Dec 20, 2012 at 10:20

answered Dec 20, 2012 at 10:05

Andris

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Comments

PhearOfRayne · Accepted Answer · 2012-12-20 10:10:41Z

3

You just need to loop through the pages array and inside the loop access the object properties like:

<?php foreach($pages as $k => $p): ?>
   <?php if ($p->_visable === 1): ?>
   <li><?php echo $k; ?></li>
   <?php endif; ?>
<?php endforeach; ?>

Please note that visable is misspelled but thats how it is in your question

edited Dec 20, 2012 at 10:10

answered Dec 20, 2012 at 10:03

PhearOfRayne

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3 Comments

Bart Friederichs Over a year ago

Why all the <?php ?> tags?

PhearOfRayne Over a year ago

Because thats how the OP is currently doing it, YES I understand all about BEST PRACTICES but was trying to stick with their current structure ;)

Felix Kling Over a year ago

When using PHP as template language, i.e. embedding PHP into HTML, then this style is more readable IMO than anything else. Each statement looks like a "tag" somehow and thus easier to spot / fits better into HTML and the structure / flow is clearer.

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