chamilo/chamilo-lms

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public/plugin/test2pdf/src/test2pdf_plugin.class.php

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Remove error control operator '@' on line 52.
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    public function install()
    {
        //Installing course settings
        $this->install_course_fields_in_all_courses();

ErrorControlOperator

Error suppression should be avoided if possible as it doesn't just suppress the error, that you are trying to stop, but will also suppress errors that you didn't predict would ever occur. Consider changing error_reporting() level and/or setting up your own error handler.

Example

function foo($filePath) {
    $file = @fopen($filPath); // hides exceptions
    $key = @$array[$notExistingKey]; // assigns null to $key
}

Source http://phpmd.org/rules/cleancode.html#errorcontroloperator

Variable "course_settings" is not in valid camel caps format
Open

        $this->uninstall_course_fields_in_all_courses($this->course_settings);

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