Spatie\Browsershot\Browsershot::getPhantomJsScript PHP Method

    protected function getPhantomJsScript($targetFile)
    {
        return "\n            var page = require('webpage').create();\n            page.settings.javascriptEnabled = true;\n            page.settings.resourceTimeout = " . $this->timeout . ';
            page.viewportSize = { width: ' . $this->width . ', height: ' . ($this->height == 0 ? 1 : $this->height) . " };\n            page.open('{$this->url}', function() {\n                if (" . ($this->backgroundColor ? 'true' : 'false') . ") {\n                    page.evaluate(function() {\n                        var style = document.createElement('style'),\n                            text = document.createTextNode('body { background: {$this->backgroundColor} }');\n                        style.setAttribute('type', 'text/css');\n                        style.appendChild(text);\n                        document.head.insertBefore(style, document.head.firstChild);\n                    });\n                }\n                window.setTimeout(function(){\n                    page.render('{$targetFile}');\n                    phantom.exit();\n                }, {$this->timeout});\n            });\n        ";
    }