framework/web/ErrorHandler.php
public function renderCallStackItem($file, $line, $class, $method, $args, $index)
    {
        $lines = [];
        $begin = $end = 0;
        if ($file !== null && $line !== null) {
            $line--; // adjust line number from one-based to zero-based
            $lines = @file($file);
            if ($line < 0 || $lines === false || ($lineCount = count($lines)) < $line) {
                return '';
            }

            $half = (int) (($index === 1 ? $this->maxSourceLines : $this->maxTraceSourceLines) / 2);
            $begin = $line - $half > 0 ? $line - $half : 0;
            $end = $line + $half < $lineCount ? $line + $half : $lineCount - 1;
        }

        return $this->renderFile($this->callStackItemView, [
            'file' => $file,
            'line' => $line,
            'class' => $class,
            'method' => $method,
            'index' => $index,
            'lines' => $lines,
            'begin' => $begin,
            'end' => $end,
            'args' => $args,
        ]);
    }
public function renderCallStackItem($file, $line, $class, $method, $args, $index)
    {
        $lines = [];
        $begin = $end = 0;
        if ($file !== null && $line !== null) {
            $line--; // adjust line number from one-based to zero-based
            $lines = @file($file);
            if ($line < 0 || $lines === false || ($lineCount = count($lines)) < $line) {
                return '';
            }

            $half = (int) (($index === 1 ? $this->maxSourceLines : $this->maxTraceSourceLines) / 2);
            $begin = $line - $half > 0 ? $line - $half : 0;
            $end = $line + $half < $lineCount ? $line + $half : $lineCount - 1;
        }

        return $this->renderFile($this->callStackItemView, [
            'file' => $file,
            'line' => $line,
            'class' => $class,
            'method' => $method,
            'index' => $index,
            'lines' => $lines,
            'begin' => $begin,
            'end' => $end,
            'args' => $args,
        ]);
    }
public function renderCallStackItem ( $ file , $ line , $ class , $ method , $ args , $ index ) { $ lines = [ ] ; $ begin = $ end = 0 ; if ( $ file !== null && $ line !== null ) { $ line -- ; // adjust line number from one-based to zero-based $ lines = @ file ( $ file ) ; if ( $ line < 0 || $ lines === false || ( $ lineCount = count ( $ lines ) ) < $ line ) { return '' ; } $ half = ( int ) ( ( $ index === 1 ? $ this -> maxSourceLines : $ this -> maxTraceSourceLines ) / 2 ) ; $ begin = $ line - $ half > 0 ? $ line - $ half : 0 ; $ end = $ line + $ half < $ lineCount ? $ line + $ half : $ lineCount - 1 ; } return $ this -> renderFile ( $ this -> callStackItemView , [ 'file' => $ file , 'line' => $ line , 'class' => $ class , 'method' => $ method , 'index' => $ index , 'lines' => $ lines , 'begin' => $ begin , 'end' => $ end , 'args' => $ args , ] ) ; }
Renders a single call stack element.
@param string|null $file name where call has happened.
@param int|null $line number on which call has happened.
@param string|null $class called class name.
@param string|null $method called function/method name.
@param array $args array of method arguments.
@param int $index number of the call stack element.
@return string HTML content of the rendered call stack element.
Renders a single call stack element .