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run code in 300+ PHP versions simultaneously
<?php $headerShown = false; // Pretend this is your while loop for($i = 0; $i <= 10; $i++){ // Pretend this is your condition if($i > 5){ if(!$headerShown){ echo '<h2>Header</header>', PHP_EOL; $headerShown = true; } echo $i, PHP_EOL; } }
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
<h2>Header</header> 6 7 8 9 10

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61.5 ms | 975 KiB | 4 Q