DumpBacktrace::eDump() - Code Metrics - Inspection of "Add eDump() and getDump()" - steevanb/php-backtrace - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( b7d869...e9eea3 )

by Steevan

created 2016-10-10 09:46 UTC

DumpBacktrace::eDump() A

↳ Parent: DumpBacktrace

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	5
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	3
nc	1
nop	2

<?php

class DumpBacktrace
namespace YourVendor;

class YourClass { }
{
    /** @var bool|string */
    protected static $removePathPrefix = true;

    /**
     * @param bool|string $remove
     */
    public static function setRemovePathPrefix($remove)
    {
        static::$removePathPrefix = $remove;
    }

    /**
     * @param int $offset
     * @param int|null $limit
     */
    public static function dump($offset = 0, $limit = null)
    {
        echo static::getDump(static::getBacktraces($offset + 1, $limit));
    }

    /**
     * @param int $offset
     * @param int|null $limit
     */
    public static function eDump($offset = 0, $limit = null)
    {
        static::dump($offset + 1, $limit);
        exit();

    }

    /**
     * @param int $offset
     * @param int|null $limit
     * @return array
     */
    public static function getBacktraces($offset = 0, $limit = null)
    {
        if ($limit !== null) {
            $limit += $offset;
        }

        $filteredBacktraces = [];
        foreach (debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, $limit) as $dumpIndex => $backtrace) {
            if ($dumpIndex > $offset) {
                $filteredBacktrace = [
                    'file' => isset($backtrace['file']) ? $backtrace['file'] : null,
                    'line' => isset($backtrace['line']) ? $backtrace['line'] : null,
                ];
                if (isset($backtrace['class'])) {
                    $filteredBacktrace['call'] =
                        $backtrace['class'] . $backtrace['type'] . $backtrace['function'] . '()';
                } elseif (isset($backtrace['function'])) {
                    $filteredBacktrace['call'] = $backtrace['function'] . '()';
                } else {
                    $filteredBacktrace['call'] = '(Unknow call)';
                }

                $filteredBacktraces[] = $filteredBacktrace;
            }
        }

        return $filteredBacktraces;
    }

    /**
     * @param array $backtraces
     * @return string
     */
    public static function getDump(array $backtraces)
    {
        $return = static::getStylesDump();
        $return .= static::getJavascriptDump();

        $return .= '<div class="steevanb-backtrace-container">';
        $return .= static::getCallerDump();

        $return .= '
            <table class="table-backtrace">
                <tr>
                    <th>#</th>
                    <th>File::Line</th>
                    <th>Call</th>
                </tr>
        ';
        $previewPrefix = uniqid('steevanb_backtrace_preview');
        foreach ($backtraces as $index => $backtrace) {
            $return .= static::getBacktraceDump($backtrace, $index, $previewPrefix);
        }
        $return .= '</table>';

        $return .= '</div>';

        return $return;
    }

    /**
     * @return array|null
     */
    protected static function getCaller()
    {
        $backtraces = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 7);
        $nextIsCaller = false;
        $caller = null;
        foreach ($backtraces as $backtrace) {
            if (
                isset($backtrace['file'])
                && strpos($backtrace['file'], __FILE__) !== false
            ) {
                $nextIsCaller = true;
            } elseif (
                $nextIsCaller
                && (
                    (isset($backtrace['file']) && strpos($backtrace['file'], __FILE__) === false)
                    || isset($backtrace['file']) === false
                )
            ) {
                $caller = $backtrace;
                break;
            }
        }
        if ($nextIsCaller === false && count($backtraces) > 0) {
            $caller = $backtraces[0];
        }

        return $caller;
    }

    /**
     * @return string
     */
    protected static function getStylesDump()
    {
        return '
            <style type="text/css">
                .steevanb-backtrace-container {
                    padding: 5px;
                    border: solid 2px #9e9e9e;
                    background-color: #F5F5F5;
                    cursor: default;
                    font-family: monospace;
                }
                .steevanb-backtrace-container table {
                    border-collapse: collapse;
                }
                .steevanb-backtrace-container table.table-backtrace tr.dark {
                    background-color: #e5e5e5;
                }
                .steevanb-backtrace-container table.table-backtrace td {
                    padding: 2px !important;
                }
                .steevanb-backtrace-container table.table-backtrace td a,
                .steevanb-backtrace-container table.table-backtrace td a:hover,
                .steevanb-backtrace-container table.table-backtrace td a:visited
                {
                    color: #4e7ca9 !important;
                    text-decoration: none !important;
                    cursor: pointer !important;
                }
                .steevanb-backtrace-container table.table-backtrace td a:hover {
                    text-decoration: underline !important;
                }
            </style>';
    }

    /**
     * @return string
     */
    protected static function getJavascriptDump()
    {
        return '
            <script type="text/javascript">
                function steevanb_dev_showCodePreview(id)
                {
                    var element = document.getElementById(id);
                    element.style.display = (element.style.display === "none") ? "" : "none";
                }
            </script>';
    }

    /**
     * @param array $backtrace
     * @param int $index
     * @param string $previewPrefix
     * @return string
     */
    protected static function getBacktraceDump(array $backtrace, $index, $previewPrefix)
    {
        if (isset($backtrace['file'])) {
            $file = basename($backtrace['file']);
            $filePath = $backtrace['file'];
            $fileFound = true;
        } else {
            $filePath = null;
            $fileFound = false;
        }

        if (isset($backtrace['line'])) {
            $line = $backtrace['line'];
            $lineFound = true;
        } else {
            $lineFound = false;
        }

        if ($fileFound === false && $lineFound === false) {
            $fileLineHtml = '\Closure';
        } else {
            $previewId = $previewPrefix . '_' . $index;
            $codePreview = static::getCodePreview($filePath, $line);
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
            $fileLineHtml = '
                <a
                    title="' . static::getFilePath($filePath) . '"
                    onclick="steevanb_dev_showCodePreview(\'' . $previewId . '\')"
                >
                    ' . $file . '::' . $line . '
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
                </a>
            ';
        }

        $html = '
            <tr' . ($index % 2 ? null : ' class="dark"') . '>
                <td>' . $index . '</td>
                <td>' . $fileLineHtml . '</td>
                <td>' . $backtrace['call'] . '</td>
            </tr>
        ';
        if ($fileFound && $lineFound) {
            $html .= '
                <tr' . ($index % 2 ? null : ' class="dark"') . ' id="' . $previewId . '" style="display: none">
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
                    <td colspan="3"><pre>' . $codePreview . '</pre></td>
function myFunction($a) {
    switch ($a) {
        case 'foo':
            $x = 1;
            break;

        case 'bar':
            $x = 2;
            break;
    }

    // $x is potentially undefined here.
    echo $x;
}
                </tr>
            ';
        }

        return $html;
    }

    /**
     * @return string
     */
    protected static function getCallerDump()
    {
        $caller = static::getCaller();

        $return = '<div style="padding: 5px; background-color: #78a1c9; color: white; font-weight: bold">';
        $header = null;
        if (is_array($caller)) {
            $header .= isset($caller['file']) ? static::getFilePath($caller['file']) : '(Unknow file)';
            $header .= isset($caller['line']) ? '::' . $caller['line'] : '::(Unknow line)';
        } else {
            $header= 'Unkonw caller';
        }
        $return .= $header;
        $return .= '</div>';

        return $return;
    }

    /**
     * @param string $code
     * @return string
     */
    protected static function highlightCode($code)
    {
        $highlight = highlight_string('<?php ' . $code, true);
        $highlight = str_replace('>&lt;?php&nbsp;', null, $highlight);

        return $highlight;
    }

    /**
     * @param string $file
     * @param int $line
     * @return string
     */
    protected static function getCodePreview($file, $line)
    {
        $preview = [];
        $lineMin = $line - 6;
        $lineMax = $line + 4;
        foreach (file($file) as $index => $codeLine) {
            if ($index >= $lineMin && $index <= $lineMax) {
                if ($index === $line - 1) {
                    $preview[] = '<span style="background-color: #7fd189">' . rtrim($codeLine) . '</span>';
                } else {
                    $preview[] = rtrim($codeLine);
                }
            } elseif ($index > $lineMax) {
                break;
            }
        }

        return implode('<br />', $preview);
    }

    /**
     * @param string $path
     * @return string
     */
    protected static function getFilePath($path)
    {
        $path = realpath($path);

        if (static::$removePathPrefix === false) {
            $return = $path;
        } else {
            // assume that we are in vendor/ dir
            $prefix = (static::$removePathPrefix === true)
                ? realpath(__DIR__ . '/../../../')
                : static::$removePathPrefix;
            $return = (substr($path, 0, strlen($prefix)) === $prefix) ? substr($path, strlen($prefix) + 1) : $path;
        }

        return $return;
    }
}


Push — master ( b7d869...e9eea3 )

DumpBacktrace::eDump() A

Complexity

Size

Duplication

Importance

Available Fixes

Available Fixes

Available Fixes

Available Fixes

1			<?php
2
3			class DumpBacktrace
			0 ignored issues – show Coding Style Compatibility introduced 2016-08-02 07:58 UTC by Report Bug Copy Issue Report PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions. You can fix this by adding a namespace to your class: namespace YourVendor; class YourClass { } When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries. Loading history...
4			{
5			/** @var bool\|string */
6			protected static $removePathPrefix = true;
7
8			/**
9			* @param bool\|string $remove
10			*/
11			public static function setRemovePathPrefix($remove)
12			{
13			static::$removePathPrefix = $remove;
14			}
15
16			/**
17			* @param int $offset
18			* @param int\|null $limit
19			*/
20			public static function dump($offset = 0, $limit = null)
21			{
22			echo static::getDump(static::getBacktraces($offset + 1, $limit));
23			}
24
25			/**
26			* @param int $offset
27			* @param int\|null $limit
28			*/
29			public static function eDump($offset = 0, $limit = null)
30			{
31			static::dump($offset + 1, $limit);
32			exit();
			1 ignored issue – show Coding Style Compatibility introduced 2016-10-10 09:48 UTC by Report Bug Copy Issue Report The method `eDump()` contains an exit expression. An exit expression should only be used in rare cases. For example, if you write a short command line script. In most cases however, using an `exit` expression makes the code untestable and often causes incompatibilities with other libraries. Thus, unless you are absolutely sure it is required here, we recommend to refactor your code to avoid its usage. Loading history...
33			}
34
35			/**
36			* @param int $offset
37			* @param int\|null $limit
38			* @return array
39			*/
40			public static function getBacktraces($offset = 0, $limit = null)
41			{
42			if ($limit !== null) {
43			$limit += $offset;
44			}
45
46			$filteredBacktraces = [];
47			foreach (debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, $limit) as $dumpIndex => $backtrace) {
48			if ($dumpIndex > $offset) {
49			$filteredBacktrace = [
50			'file' => isset($backtrace['file']) ? $backtrace['file'] : null,
51			'line' => isset($backtrace['line']) ? $backtrace['line'] : null,
52			];
53			if (isset($backtrace['class'])) {
54			$filteredBacktrace['call'] =
55			$backtrace['class'] . $backtrace['type'] . $backtrace['function'] . '()';
56			} elseif (isset($backtrace['function'])) {
57			$filteredBacktrace['call'] = $backtrace['function'] . '()';
58			} else {
59			$filteredBacktrace['call'] = '(Unknow call)';
60			}
61
62			$filteredBacktraces[] = $filteredBacktrace;
63			}
64			}
65
66			return $filteredBacktraces;
67			}
68
69			/**
70			* @param array $backtraces
71			* @return string
72			*/
73			public static function getDump(array $backtraces)
74			{
75			$return = static::getStylesDump();
76			$return .= static::getJavascriptDump();
77
78			$return .= '<div class="steevanb-backtrace-container">';
79			$return .= static::getCallerDump();
80
81			$return .= '
82			<table class="table-backtrace">
83			<tr>
84			<th>#</th>
85			<th>File::Line</th>
86			<th>Call</th>
87			</tr>
88			';
89			$previewPrefix = uniqid('steevanb_backtrace_preview');
90			foreach ($backtraces as $index => $backtrace) {
91			$return .= static::getBacktraceDump($backtrace, $index, $previewPrefix);
92			}
93			$return .= '</table>';
94
95			$return .= '</div>';
96
97			return $return;
98			}
99
100			/**
101			* @return array\|null
102			*/
103			protected static function getCaller()
104			{
105			$backtraces = debug_backtrace(DEBUG_BACKTRACE_IGNORE_ARGS, 7);
106			$nextIsCaller = false;
107			$caller = null;
108			foreach ($backtraces as $backtrace) {
109			if (
110			isset($backtrace['file'])
111			&& strpos($backtrace['file'], __FILE__) !== false
112			) {
113			$nextIsCaller = true;
114			} elseif (
115			$nextIsCaller
116			&& (
117			(isset($backtrace['file']) && strpos($backtrace['file'], __FILE__) === false)
118			\|\| isset($backtrace['file']) === false
119			)
120			) {
121			$caller = $backtrace;
122			break;
123			}
124			}
125			if ($nextIsCaller === false && count($backtraces) > 0) {
126			$caller = $backtraces[0];
127			}
128
129			return $caller;
130			}
131
132			/**
133			* @return string
134			*/
135			protected static function getStylesDump()
136			{
137			return '
138			<style type="text/css">
139			.steevanb-backtrace-container {
140			padding: 5px;
141			border: solid 2px #9e9e9e;
142			background-color: #F5F5F5;
143			cursor: default;
144			font-family: monospace;
145			}
146			.steevanb-backtrace-container table {
147			border-collapse: collapse;
148			}
149			.steevanb-backtrace-container table.table-backtrace tr.dark {
150			background-color: #e5e5e5;
151			}
152			.steevanb-backtrace-container table.table-backtrace td {
153			padding: 2px !important;
154			}
155			.steevanb-backtrace-container table.table-backtrace td a,
156			.steevanb-backtrace-container table.table-backtrace td a:hover,
157			.steevanb-backtrace-container table.table-backtrace td a:visited
158			{
159			color: #4e7ca9 !important;
160			text-decoration: none !important;
161			cursor: pointer !important;
162			}
163			.steevanb-backtrace-container table.table-backtrace td a:hover {
164			text-decoration: underline !important;
165			}
166			</style>';
167			}
168
169			/**
170			* @return string
171			*/
172			protected static function getJavascriptDump()
173			{
174			return '
175			<script type="text/javascript">
176			function steevanb_dev_showCodePreview(id)
177			{
178			var element = document.getElementById(id);
179			element.style.display = (element.style.display === "none") ? "" : "none";
180			}
181			</script>';
182			}
183
184			/**
185			* @param array $backtrace
186			* @param int $index
187			* @param string $previewPrefix
188			* @return string
189			*/
190			protected static function getBacktraceDump(array $backtrace, $index, $previewPrefix)
191			{
192			if (isset($backtrace['file'])) {
193			$file = basename($backtrace['file']);
194			$filePath = $backtrace['file'];
195			$fileFound = true;
196			} else {
197			$filePath = null;
198			$fileFound = false;
199			}
200
201			if (isset($backtrace['line'])) {
202			$line = $backtrace['line'];
203			$lineFound = true;
204			} else {
205			$lineFound = false;
206			}
207
208			if ($fileFound === false && $lineFound === false) {
209			$fileLineHtml = '\Closure';
210			} else {
211			$previewId = $previewPrefix . '_' . $index;
212			$codePreview = static::getCodePreview($filePath, $line);
			0 ignored issues – show Bug introduced 2016-08-16 14:14 UTC by Report Bug Copy Issue Report The variable `$line` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
213			$fileLineHtml = '
214			<a
215			title="' . static::getFilePath($filePath) . '"
216			onclick="steevanb_dev_showCodePreview(\'' . $previewId . '\')"
217			>
218			' . $file . '::' . $line . '
			0 ignored issues – show Bug introduced 2016-08-16 14:14 UTC by Report Bug Copy Issue Report The variable `$file` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
219			</a>
220			';
221			}
222
223			$html = '
224			<tr' . ($index % 2 ? null : ' class="dark"') . '>
225			<td>' . $index . '</td>
226			<td>' . $fileLineHtml . '</td>
227			<td>' . $backtrace['call'] . '</td>
228			</tr>
229			';
230			if ($fileFound && $lineFound) {
231			$html .= '
232			<tr' . ($index % 2 ? null : ' class="dark"') . ' id="' . $previewId . '" style="display: none">
			0 ignored issues – show Bug introduced 2016-08-16 14:14 UTC by Report Bug Copy Issue Report The variable `$previewId` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
233			<td colspan="3"><pre>' . $codePreview . '</pre></td>
			0 ignored issues – show Bug introduced 2016-08-16 14:14 UTC by Report Bug Copy Issue Report The variable `$codePreview` does not seem to be defined for all execution paths leading up to this point. If you define a variable conditionally, it can happen that it is not defined for all execution paths. Let’s take a look at an example: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } // $x is potentially undefined here. echo $x; } In the above example, the variable `$x` is defined if you pass “foo” or “bar” as argument for `$a`. However, since the `switch` statement has no default case statement, if you pass any other value, the variable `$x` would be undefined. Available Fixes Check for existence of the variable explicitly: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } if (isset($x)) { // Make sure it's always set. echo $x; } } Define a default value for the variable: function myFunction($a) { $x = ''; // Set a default which gets overridden for certain paths. switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; } echo $x; } Add a value for the missing path: function myFunction($a) { switch ($a) { case 'foo': $x = 1; break; case 'bar': $x = 2; break; // We add support for the missing case. default: $x = ''; break; } echo $x; } Loading history...
234			</tr>
235			';
236			}
237
238			return $html;
239			}
240
241			/**
242			* @return string
243			*/
244			protected static function getCallerDump()
245			{
246			$caller = static::getCaller();
247
248			$return = '<div style="padding: 5px; background-color: #78a1c9; color: white; font-weight: bold">';
249			$header = null;
250			if (is_array($caller)) {
251			$header .= isset($caller['file']) ? static::getFilePath($caller['file']) : '(Unknow file)';
252			$header .= isset($caller['line']) ? '::' . $caller['line'] : '::(Unknow line)';
253			} else {
254			$header= 'Unkonw caller';
255			}
256			$return .= $header;
257			$return .= '</div>';
258
259			return $return;
260			}
261
262			/**
263			* @param string $code
264			* @return string
265			*/
266			protected static function highlightCode($code)
267			{
268			$highlight = highlight_string('<?php ' . $code, true);
269			$highlight = str_replace('><?php ', null, $highlight);
270
271			return $highlight;
272			}
273
274			/**
275			* @param string $file
276			* @param int $line
277			* @return string
278			*/
279			protected static function getCodePreview($file, $line)
280			{
281			$preview = [];
282			$lineMin = $line - 6;
283			$lineMax = $line + 4;
284			foreach (file($file) as $index => $codeLine) {
285			if ($index >= $lineMin && $index <= $lineMax) {
286			if ($index === $line - 1) {
287			$preview[] = '<span style="background-color: #7fd189">' . rtrim($codeLine) . '</span>';
288			} else {
289			$preview[] = rtrim($codeLine);
290			}
291			} elseif ($index > $lineMax) {
292			break;
293			}
294			}
295
296			return implode('<br />', $preview);
297			}
298
299			/**
300			* @param string $path
301			* @return string
302			*/
303			protected static function getFilePath($path)
304			{
305			$path = realpath($path);
306
307			if (static::$removePathPrefix === false) {
308			$return = $path;
309			} else {
310			// assume that we are in vendor/ dir
311			$prefix = (static::$removePathPrefix === true)
312			? realpath(__DIR__ . '/../../../')
313			: static::$removePathPrefix;
314			$return = (substr($path, 0, strlen($prefix)) === $prefix) ? substr($path, strlen($prefix) + 1) : $path;
315			}
316
317			return $return;
318			}
319			}
320

steevanb / php-backtrace

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DumpBacktrace::eDump() A

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