Fixes #2837: Error page now shows arguments in stack trace method calls

framework/CHANGELOG.md

@@ -11,6 +11,7 @@ Yii Framework 2 Change Log
 - Bug #3125: `yii\console\controllers\AssetController` now respects data URL resources (klimov-paul)
 - Bug #3128: Fixed the bug that `defaultRoles` set in RBAC manager was not working as specified (qiangxue)
 - Bug #3153: Fixed the bug that using "between" operator to build a SQL query will cause a PHP notice (gonimar)
+- Enh #2837: Error page now shows arguments in stack trace method calls (samdark)
 - Enh #3103: debugger panel is now not displayed when printing a page (githubjeka)
 - Enh #3108: Added `yii\debug\Module::enableDebugLogs` to disable logging debug logs by default (qiangxue)
 - Enh #3132: `yii\rbac\PhpManager` now supports more compact data file format (qiangxue)

framework/views/errorHandler/callStackItem.php

@@ -20,7 +20,7 @@
             <?php if ($method !== null): ?>
                 <span class="call">
                     <?php if ($file !== null) echo '&ndash;' ?>
-                    <?= $class !== null ? $handler->addTypeLinks("$class::$method()") : $method . '()' ?>
+                    <?= $class !== null ? $handler->addTypeLinks("$class::$method(" . $handler->argumentsToString($args) . ")") : $handler->htmlEncode($method) . '(' . $handler->argumentsToString($args) . ')' ?>
                 </span>
             <?php endif; ?>
             <span class="at"><?php if ($line !== null) echo 'at line'; ?></span>

framework/views/errorHandler/exception.php

@@ -150,6 +150,7 @@ html,body{
     margin: 0 auto;
     padding: 0 50px;
     position: relative;
+    white-space: nowrap;
 }
 .call-stack ul li a{
     color: #505050;
@@ -286,55 +287,33 @@ html,body{
 }
 
 /* highlight.js */
-pre .subst,pre .title{
-    font-weight: normal;
-    color: #505050;
-}
-pre .comment,pre .template_comment,pre .javadoc,pre .diff .header{
+.comment{
     color: #808080;
     font-style: italic;
 }
-pre .annotation,pre .decorator,pre .preprocessor,pre .doctype,pre .pi,pre .chunk,pre .shebang,pre .apache .cbracket,
-pre .prompt,pre .http .title{
-    color: #808000;
-}
-pre .tag,pre .pi{
-    background: #efefef;
-}
-pre .tag .title,pre .id,pre .attr_selector,pre .pseudo,pre .literal,pre .keyword,pre .hexcolor,pre .css .function,
-pre .ini .title,pre .css .class,pre .list .title,pre .clojure .title,pre .nginx .title,pre .tex .command,
-pre .request,pre .status{
+.keyword{
     color: #000080;
 }
-pre .attribute,pre .rules .keyword,pre .number,pre .date,pre .regexp,pre .tex .special{
+.number{
     color: #00a;
 }
-pre .number,pre .regexp{
+.number{
     font-weight: normal;
 }
-pre .string,pre .value,pre .filter .argument,pre .css .function .params,pre .apache .tag{
+.string, .value{
     color: #0a0;
 }
-pre .symbol,pre .ruby .symbol .string,pre .char,pre .tex .formula{
+.symbol, .char {
     color: #505050;
     background: #d0eded;
     font-style: italic;
 }
-pre .phpdoc,pre .yardoctag,pre .javadoctag{
+.phpdoc{
     text-decoration: underline;
 }
-pre .variable,pre .envvar,pre .apache .sqbracket,pre .nginx .built_in{
+.variable{
     color: #a00;
 }
-pre .addition{
-    background: #baeeba;
-}
-pre .deletion{
-    background: #ffc8bd;
-}
-pre .diff .change{
-    background: #bccff9;
-}
     </style>
 </head>
 
@@ -367,10 +346,10 @@ pre .diff .change{
 
     <div class="call-stack">
         <ul>
-            <?= $handler->renderCallStackItem($exception->getFile(), $exception->getLine(), null, null, 1) ?>
+            <?= $handler->renderCallStackItem($exception->getFile(), $exception->getLine(), null, null, [], 1) ?>
             <?php for ($i = 0, $trace = $exception->getTrace(), $length = count($trace); $i < $length; ++$i): ?>
                 <?= $handler->renderCallStackItem(@$trace[$i]['file'] ?: null, @$trace[$i]['line'] ?: null,
-                    @$trace[$i]['class'] ?: null, @$trace[$i]['function'] ?: null, $i + 2) ?>
+                    @$trace[$i]['class'] ?: null, @$trace[$i]['function'] ?: null, $trace[$i]['args'], $i + 2) ?>
             <?php endfor; ?>
         </ul>
     </div>

framework/web/ErrorHandler.php

@@ -152,15 +152,18 @@ class ErrorHandler extends \yii\base\ErrorHandler
      */
     public function addTypeLinks($code)
     {
-        if (strpos($code, 'yii\\') !== 0) {
-            return $this->htmlEncode($code);
-        }
-
-        if (($pos = strpos($code, '::')) !== false) {
-            $class = substr($code, 0, $pos);
-            $method = substr($code, $pos + 2);
+        if (preg_match('/(.*?)::([^(]+)\((.*)\)/', $code, $matches)) {
+            $class = $matches[1];
+            $method = $matches[2];
+            $args = $matches[3];
+            $text = $this->htmlEncode($class) . '::' . $this->htmlEncode($method) . '(' . $args . ')';
         } else {
             $class = $code;
+            $text = $this->htmlEncode($class);
+        }
+
+        if (strpos($code, 'yii\\') !== 0) {
+            return $text;
         }
 
         $page = $this->htmlEncode(strtolower(str_replace('\\', '-', $class)));
@@ -169,7 +172,7 @@ class ErrorHandler extends \yii\base\ErrorHandler
             $url .= "#$method-detail";
         }
 
-        return '<a href="' . $url . '" target="_blank">' . $this->htmlEncode($code) . '</a>';
+        return '<a href="' . $url . '" target="_blank">' . $text . '</a>';
     }
 
     /**
@@ -215,9 +218,10 @@ class ErrorHandler extends \yii\base\ErrorHandler
      * @param string|null $class called class name.
      * @param string|null $method called function/method name.
      * @param integer $index number of the call stack element.
+     * @param array $args array of method arguments.
      * @return string HTML content of the rendered call stack element.
      */
-    public function renderCallStackItem($file, $line, $class, $method, $index)
+    public function renderCallStackItem($file, $line, $class, $method, $args, $index)
     {
         $lines = [];
         $begin = $end = 0;
@@ -242,6 +246,7 @@ class ErrorHandler extends \yii\base\ErrorHandler
             'lines' => $lines,
             'begin' => $begin,
             'end' => $end,
+            'args' => $args,
         ]);
     }
 
@@ -319,4 +324,57 @@ class ErrorHandler extends \yii\base\ErrorHandler
     {
         return '<a href="http://github.com/yiisoft/yii2/" target="_blank">' . $this->htmlEncode(Yii::getVersion()) . '</a>';
     }
+
+    /**
+     * Converts arguments array to its string representation
+     *
+     * @param array $args arguments array to be converted
+     * @return string string representation of the arguments array
+     */
+    public function argumentsToString($args)
+    {
+        $count = 0;
+        $isAssoc = $args !== array_values($args);
+
+        foreach ($args as $key => $value) {
+            $count++;
+            if($count>=5) {
+                if($count>5) {
+                    unset($args[$key]);
+                } else {
+                    $args[$key] = '...';
+                }
+                continue;
+            }
+
+            if (is_object($value)) {
+                $args[$key] = '<span class="title">' . $this->htmlEncode(get_class($value)) . '</span>';
+            } elseif (is_bool($value)) {
+                $args[$key] = '<span class="keyword">' . ($value ? 'true' : 'false') . '</span>';
+            } elseif (is_string($value)) {
+                if (strlen($value) > 64) {
+                    $value = substr($value, 0, 64) . '...';
+                }
+                $value = $this->htmlEncode($value);
+                $args[$key] = "<span class=\"string\">'$value'</span>";
+            } elseif (is_array($value)) {
+                $args[$key] = '[' . $this->argumentsToString($value) . ']';
+            } elseif ($value === null) {
+                $args[$key] = '<span class="keyword">null</span>';
+            } elseif(is_resource($value)) {
+                $args[$key] = '<span class="keyword">resource</span>';
+            } else {
+                $args[$key] = '<span class="number">' . $value . '</span>';
+            }
+
+            if (is_string($key)) {
+                $args[$key] = '<span class="string">\'' . $this->htmlEncode($key) . "'</span> => $args[$key]";
+            } elseif ($isAssoc) {
+                $args[$key] = "<span class=\"number\">$key</span> => $args[$key]";
+            }
+        }
+        $out = implode(", ", $args);
+
+        return $out;
+    }
 }