How can PHP beginners efficiently loop through irregularly filled arrays using for loops?

Irregularly filled arrays can pose a challenge for beginners when looping through them using for loops, as the array may contain empty or undefined elements. To efficiently loop through such arrays, beginners can use the count() function to determine the array size and then iterate through the array using a for loop, checking for the existence of elements before accessing them. 

$array = ["apple", "banana", "", "orange", ""];

for ($i = 0; $i < count($array); $i++) {
    if (!empty($array[$i])) {
        echo $array[$i] . "\n";
    }
}

Keywords

PHP for loops arrays irregular beginners

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