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php array remove empty values

Isaiah 
<?php
$arr = array('1', '', '2', '3', '0');
// Incorrect:
print_r(array_filter($arr));
// Correct:
print_r(array_filter($arr, 'strlen'));
//Custom
print_r(array_filter($arr, function ($val) {if ($val > 0) {return true;} else {return false;}}));
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4.5
2
Eynar Oxartum 95 points 

                                    // PHP 7.4 and later
print_r(array_filter($linksArray, fn($value) =&gt; !is_null($value) &amp;&amp; $value !== ''));

// PHP 5.3 and later
print_r(array_filter($linksArray, function($value) { return !is_null($value) &amp;&amp; $value !== ''; }));

// PHP &lt; 5.3
print_r(array_filter($linksArray, create_function('$value', 'return $value !== &quot;&quot;;')));

4.5 (2 Votes)
0
4.44
9
Mike Sorokin 100 points 

                                    $array = array_filter($array, function($a) {
    return trim($a) !== &quot;&quot;;
});

4.44 (9 Votes)
0
4.2
10
Vu Bamboo 110 points 

                                    $colors = array(&quot;red&quot;,&quot;&quot;,&quot;blue&quot;,NULL);

$colorsNoEmptyOrNull = array_filter($colors, function($v){ 
 return !is_null($v) &amp;&amp; $v !== ''; 
});
//$colorsNoEmptyOrNull is now [&quot;red&quot;,&quot;blue&quot;]

4.2 (10 Votes)
0
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