How can nested loops impact the results in PHP?

Nested loops can impact the results in PHP by causing the code to execute multiple times, potentially leading to unexpected behavior or performance issues. To avoid this, it's important to carefully manage the logic within nested loops to ensure that the desired outcome is achieved without unnecessary repetition. 

// Example of nested loops with proper logic management
for ($i = 1; $i <= 5; $i++) {
    for ($j = 1; $j <= $i; $j++) {
        echo $j . " ";
    }
    echo "<br>";
}

Keywords

nested loops PHP iteration performance logic

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