debug.php

<?php 


/**
 * Dump and die function. Outputs the information about a variable and terminates the execution of the script.
 *
 * @param mixed ...$args Variables to be dumped.
 * @return void
 */
if (!function_exists('dd')) {
    function dd() {
        list($callee) = debug_backtrace();
        $args = func_get_args();
        
        echo '<style>.debugger{background: #fefefe; border:1px red solid; padding:15px;}.debugger legend{background:blue; color:white; padding:5px;}.debugger pre{white-space: pre-wrap;}</style>';
        echo '<div class="debugger">';
        echo '<legend>File: ' . htmlspecialchars($callee['file']) . ' @ line: ' . $callee['line'] . '</legend>';

        ob_start();
        foreach ($args as $arg) {
            var_dump($arg);
        }
        $output = ob_get_clean();
        echo '<pre>' . $output . '</pre>';
        echo '</div>';
        exit;
    }
}

/**
 * Debug to console function. Outputs the information about a variable to the browser's console.
 *
 * @param mixed ...$args Variables to be logged.
 * @return void
 * @throws Exception If headers are already sent and cannot output script tags.
 */
if (!function_exists('dc')) {
    function dc() {
        if (headers_sent()) {
            throw new Exception('Headers already sent, cannot continue to print to console.');
        }

        $args = func_get_args();
        foreach ($args as $arg) {
            echo '<script>';
            echo 'console.log(' . json_encode($arg) . ');';
            echo '</script>';
        }
    }
}

/**
 * Print readable function. Prints human-readable information about a variable.
 *
 * @param mixed ...$args Variables to be printed.
 * @return void
 */
if (!function_exists('pr')) {
    function pr() {
        list($callee) = debug_backtrace();
        $args = func_get_args();
        
        echo '<style>.debugger{background: #fefefe; border:1px red solid; padding:15px;}.debugger legend{background:blue; color:white; padding:5px;}.debugger pre{white-space: pre-wrap;}</style>';
        echo '<div class="debugger">';
        echo '<legend>File: ' . htmlspecialchars($callee['file']) . ' @ line: ' . $callee['line'] . '</legend>';

        foreach ($args as $arg) {
            echo '<pre>';
            print_r($arg);
            echo '</pre>';
        }
        echo '</div>';
    }
}