pruvodce/lib/Tracy/OutputDebugger/OutputDebugger.php

81 lines
1.9 KiB
PHP

<?php
/**
* This file is part of the Tracy (https://tracy.nette.org)
* Copyright (c) 2004 David Grudl (https://davidgrudl.com)
*/
declare(strict_types=1);
namespace Tracy;
/**
* Debugger for outputs.
*/
class OutputDebugger
{
private const BOM = "\xEF\xBB\xBF";
/** @var array of [file, line, output, stack] */
private $list = [];
public static function enable(): void
{
$me = new static;
$me->start();
}
public function start(): void
{
foreach (get_included_files() as $file) {
if (fread(fopen($file, 'r'), 3) === self::BOM) {
$this->list[] = [$file, 1, self::BOM];
}
}
ob_start([$this, 'handler'], 1);
}
/** @internal */
public function handler(string $s, int $phase): ?string
{
$trace = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS);
if (isset($trace[0]['file'], $trace[0]['line'])) {
$stack = $trace;
unset($stack[0]['line'], $stack[0]['args']);
$i = count($this->list);
if ($i && $this->list[$i - 1][3] === $stack) {
$this->list[$i - 1][2] .= $s;
} else {
$this->list[] = [$trace[0]['file'], $trace[0]['line'], $s, $stack];
}
}
return $phase === PHP_OUTPUT_HANDLER_FINAL
? $this->renderHtml()
: null;
}
private function renderHtml(): string
{
$res = '<style>code, pre {white-space:nowrap} a {text-decoration:none} pre {color:gray;display:inline} big {color:red}</style><code>';
foreach ($this->list as $item) {
$stack = [];
foreach (array_slice($item[3], 1) as $t) {
$t += ['class' => '', 'type' => '', 'function' => ''];
$stack[] = "$t[class]$t[type]$t[function]()"
. (isset($t['file'], $t['line']) ? ' in ' . basename($t['file']) . ":$t[line]" : '');
}
$res .= '<span title="' . Helpers::escapeHtml(implode("\n", $stack)) . '">'
. Helpers::editorLink($item[0], $item[1]) . ' '
. str_replace(self::BOM, '<big>BOM</big>', Dumper::toHtml($item[2]))
. "</span><br>\n";
}
return $res . '</code>';
}
}