PHP get value of multidimensional array and compair

Question

I have this array $pages which spits out this data:

Array ( 
    [Name] => Array ( 
        [Subname] => Array ( 
            [0] => 43.2057, -79.9632, 1, -70,-150 
            [1] => 140240757658.jpg 
            [2] => 5 
            [3] => 0 
        ) ) 
    [Name2] => Array ( 
        [Subname2] => Array ( 
            [0] => 43.1769, -79.4703, 5, -70,-150 
            [1] => 140267498933.png 
            [2] => 16 
            [3] => 0 
        ) ) 
)

and I have this foreach setup:

foreach($pages as $row => $value) {
    echo '<li>'.$row.'<ul>';
    foreach($value as $x => $y) {
        echo 
            '<li>
                <a href="page.php?" action='.str_replace(" ", "", strtolower($y[2])).'" title="'.$x.'">'.$x.'</a>
             </li></ul></li>';
    }
}

What I am trying to do is if [3] in each of the Subname is equal to 0, then skip it from my foreach.

NOTE: Subname and Name are just examples, they will be different for each one.

Shouldnt the actionparameter be page.php? what is the use of the action in your anchor? — arielnmz
– arielnmz, Commented Jun 13, 2014 at 18:01

arielnmz · Accepted Answer · 2014-06-13 18:07:12Z

1

This should work:

foreach ($pages as $page) {
    foreach($page as $subname) {
        if ($subname[3] != 0) {
            /* Do whatever you want with the data of this subname */
        } 
    }
}

Or this if you want to use the key names:

foreach ($pages as $pageKey => $page) {
    foreach($page as $subnameKey => $subname) {
        if ($subname[3] != 0) {
            /* Do whatever you want with the data of this subname */
        } 
    }
}

answered Jun 13, 2014 at 18:07

arielnmz

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2 Comments

Brett Santore Over a year ago

if($subname[3] === 0) continue; is going to be a much more efficient way of checking. It will check the value only once.

arielnmz Over a year ago

Why would it be more efficient? why would it check the value only once? The OP would then have to use an else in case the value is ≠ 0 am I wrong?.

BnW · Accepted Answer · 2014-06-13 17:59:22Z

0

If you want to skip the sub-foreach then this is the solution

foreach($pages as $row => $value) {
    if($value['Subname'][3] == 0)
        continue;

    echo '<li>' . $row . '<ul>';
    foreach($value as $x => $y) {
        echo '<li><a href="page.php?action=' . str_replace(" ", "", strtolower($y[2])) . '" title="' . $x . '">' . $x  . '</a></li></ul></li>';
    }
}

answered Jun 13, 2014 at 17:59

BnW

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1 Comment

user3723240 Over a year ago

forgot to mention that Subname will be different

Brett Santore · Accepted Answer · 2014-06-13 18:29:00Z

0

Since this is an Associative Array you will not be able to to check

$pages['foo']['bar'][0] === 0

before the first foreach begins since we don't know the value of $pages['foo'] before hand. when we get to the check you have already output html at the point in the form of:

 echo '<li>' . $row . '<ul>';

answered Jun 13, 2014 at 18:29

Brett Santore

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