What are the potential issues or errors that can arise when using a double while loop in PHP?

One potential issue with using a double while loop in PHP is the risk of creating an infinite loop if the conditions for exiting the loop are not properly defined. To solve this issue, make sure to have clear exit conditions for both while loops to prevent the code from getting stuck in an endless loop. 

$outerCounter = 0;
$innerCounter = 0;

while ($outerCounter < 5) {
    while ($innerCounter < 3) {
        // inner loop code here

        $innerCounter++;
    }

    // reset inner counter
    $innerCounter = 0;
    $outerCounter++;
}

Keywords

nested loops infinite loop memory consumption performance degradation logic errors

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