dumpHtml - Nette dump combined with Tidy html formating and prettyPrint to make debuging Html code easier

dumpHtml.php

<?php

use Nette\Diagnostics\Debugger;

/**
 * Dump rendered Html element or code and inteded output generated by tidy and optional also Html element structure
 * @param Html|string   Html element or string
 * @param bool  Return output in string and don't send it to output?
 * @param int   MaxDepth for Debugger::Dump output - to see how is the Html element built
 * @param bool   Send along javascript code for prettyPrint activation?
 * @return string    Html output
 */
function dumpHtml($el, $onlyReturn = false, $maxDepth = 0, $includePrettyPrintActivation = false)
{
    $maxDepthBackup = Debugger::$maxDepth;
    $maxLenBackup = Debugger::$maxLen;
    $showLocationBackup = Debugger::$showLocation;
    Debugger::$maxDepth = $maxDepth;
    Debugger::$maxLen = 200000;
    Debugger::$showLocation = false;

    $output = '<style>
    li.L0, li.L1, li.L2, li.L3, li.L5, li.L6, li.L7, li.L8 {list-style-type: inherit;}
    pre.prettyprint{
    border: 1px solid #E1E1E8;
    }
    .prettyprint.linenums {
        box-shadow: 45px 0 0 #FBFBFC inset, 46px 0 0 #ECECF0 inset;
    }
    pre{
        background-color: #F7F7F9;
        border: 1px solid #E1E1E8;
        padding: 5px;
        font-family: Consolas,Menlo,Monaco,Lucida Console,Liberation Mono,DejaVu Sans Mono,Bitstream Vera Sans Mono,Courier New,monospace,serif;
        max-height: 700px;
        overflow-y: auto;
        padding: 5px;
        width: auto;
        /*white-space: pre;*/}
        ol.linenums {
        margin: 0 0 0 43px;
        width: auto;
    }
    ol.linenums li {
        color: #BEBEC5;
        line-height: 20px;
        padding-left: 6px;
        text-shadow: 0 1px 0 #FFFFFF;
        width: auto;
    }</style>';

    $output .= '<div class="alert alert-info">' . (string) $el . '</div>';
    $output .= '<pre class="prettyprint linenums">' . htmlspecialchars(tidyFormatString((string) $el)) . '</pre>';

    if ($includePrettyPrintActivation) {
        $output .= '<script type="text/javascript">/* <![CDATA[ */prettyPrint();/* ]]> */</script>';
    }

    if ($maxDepth > 0) {
        Nette\Diagnostics\Debugger::dump((string)$el);
        Nette\Diagnostics\Debugger::dump($el);
    }

    Debugger::$maxDepth = $maxDepthBackup;
    Debugger::$maxLen = $maxLenBackup;
    Debugger::$showLocation = $showLocationBackup;

    if (!$onlyReturn) {
        echo $output;
    }
    return $output;
}


/**
 * Formats Html string to readable output
 * options are set in a way so tidy should not fix anything - because this function is intented to be used for debugging
 * @param string   String which needs formating
 * @param array $tidy_config   Optional configuration parameters
 * @return string   Tidy formated string
 */
function tidyFormatString($string, $tidy_config = '')
{
    $config = array(
                    'show-body-only' => true,
                    'clean' => false,
                    'char-encoding' => 'utf8',
                    'add-xml-decl' => true,
                    'add-xml-space' => true,
                    'output-html' => false,
                    'output-xml' => false,
                    'output-xhtml' => true,
                    'numeric-entities' => false,
                    'ascii-chars' => false,
                    'doctype' => 'strict',
                    'bare' => true,
                    'fix-uri' => false,
                    'indent' => true,
                    'indent-spaces' => 4,
                    'tab-size' => 4,
                    'wrap-attributes' => false,
                    'wrap' => 0,
                    'indent-attributes' => false,
                    'join-classes' => false,
                    'join-styles' => false,
                    'enclose-block-text' => false,
                    'fix-bad-comments' => false,
                    'fix-backslash' => false,
                    'replace-color' => false,
                    'wrap-asp' => false,
                    'wrap-jste' => false,
                    'wrap-php' => false,
                    'write-back' => false,
                    'drop-proprietary-attributes' => false,
                    'hide-comments' => false,
                    'hide-endtags' => false,
                    'literal-attributes' => false,
                    'drop-empty-paras' => false,
                    'enclose-text' => false,
                    'enclose-block-text' => false,
                    'quote-ampersand' => false,
                    'quote-marks' => false,
                    'quote-nbsp' => false,
                    'vertical-space' => false,
                    'wrap-script-literals' => false,
                    'tidy-mark' => false,
                    'merge-divs' => false,
                    'repeated-attributes' => 'keep-last',
                    'break-before-br' => false,
                    'preserve-entities' => true,
                    'force-output' => true,
                    'quiet' => true,
                    'output-bom' => false,
                    'new-empty-tags' => 'li'
    );

    if( $tidy_config == '' ) {
        $tidy_config = &$config;
    }

    $tidy = new tidy();
    $tidy->parseString($string, $tidy_config);
    //dump($tidy->getConfig());
    $out = (string )$tidy;
    unset($tidy);
    unset($tidy_config);
    return $out;
}