How can the use of echo statements in PHP affect the execution of HTML code within if-else blocks?

When using echo statements in PHP within if-else blocks, it can disrupt the execution of HTML code by mixing PHP output with HTML content. To avoid this issue, it's recommended to separate PHP logic from HTML presentation by using PHP opening and closing tags within the if-else blocks to contain PHP code only. This ensures that HTML code remains intact and unaffected by PHP output. 

<?php
if ($condition) {
    // PHP logic here
    echo "This is PHP output";
?>
    <p>This is HTML content</p>
<?php
} else {
    // PHP logic here
    echo "This is PHP output";
?>
    <p>This is HTML content</p>
<?php
}
?>

Keywords

echo statements PHP HTML code if-else blocks execution

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