PHP: Converting a bool value to a string value

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The first idea that comes into mind for doing this is to simply make a typecast of the boolean variable to a string and use that (which works)

$testVar = false;
echo (string)$testVar; //will output a empty string (as that evaluates to false)
$testVar = true;
echo (string)$testVar; //will output 1 (as that evaluates to true)

but what if the requirement is that the string should say true or false

$testVar = false;
echo $testVar ? 'true' : 'false'; //will output false
$testVar = true;
echo $testVar ? 'true' : 'false'; //will output true

(While the above example might seam useless I recently had to do this for a db insert)

2 thoughts on “PHP: Converting a bool value to a string value”

  1. Hi,
    In case you need to output a boolean as string concatenated with
    another string:

    $test_var = false;
    echo “\$test_var is: ” . ($test_var ? ‘true’ : ‘false’) . “.”; // will output ‘$test_var is: false.
    echo “\n”;
    $test_var = true;
    echo “\$test_var is: ” . ($test_var ? ‘true’ : ‘false’) . “.”; // will output $test_var is: true.

    Deleting the parentheses results in a significant change in the output (which I can’t explain): $test_var is: true.

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