system/helpers/captcha_helper.php
Function create_captcha has a Cognitive Complexity of 113 (exceeds 5 allowed). Consider refactoring. Open
Open
function create_captcha($data)
{
$defaults = array(
'word' => '',
'img_path' => '',- Read upRead up
Cognitive Complexity
Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.
A method's cognitive complexity is based on a few simple rules:
- Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
- Code is considered more complex for each "break in the linear flow of the code"
- Code is considered more complex when "flow breaking structures are nested"
Further reading
Method create_captcha has 229 lines of code (exceeds 25 allowed). Consider refactoring. Open
Open
function create_captcha($data)
{
$defaults = array(
'word' => '',
'img_path' => '',Avoid deeply nested control flow statements. Open
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if ($byte_index === $pool_length)
{
// No failures should be possible if the
// first get_random_bytes() call didn't
// return FALSE, but still ...Avoid deeply nested control flow statements. Open
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if ($rand_index > $rand_max)
{
continue;
}Avoid too many return statements within this method. Open
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return FALSE;Avoid too many return statements within this method. Open
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return array('word' => $word, 'time' => $now, 'image' => $img, 'filename' => $img_filename);Avoid too many return statements within this method. Open
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return FALSE;