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do...while

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The do...while statement will execute a block of code at least once - it then will repeat the loop as long as a condition is true.

The following example will increment the value of $i at least once, and it will continue incrementing the variable $i as long as it has a value of less than 25; 

$i = 0;
do {
    $i++;
} while($i < 25);

echo 'The final value of i is: ', $i;

The expected output is: 

The final value of i is: 25
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