摘要：背景之前已經使用寫過調用的文章不讓我使用所以只好使用調用上的包功能很冗余我只需要用到的截圖功能知識儲備系統安裝權限相關知識基本語法知識函數調用截圖文檔代碼代碼環境為框架獲取參數中文件的決定路徑獲取有權限的臨時文件目錄獲取有權限的臨時文件目

之前已經使用golang寫過調用phantomjs的文章

CTO不讓我使用golang所以只好使用php調用phantomjs

packagist上的composer包功能很冗余,我只需要用到phantomjs的截圖功能

*unix系統安裝phantomjs,權限相關知識

基本JavaScript語法知識

php exec函數調用REPL phantomjs

phantomjs js截圖文檔 http://javascript.ruanyifeng....

js_path = "{$dir}/script.js";
        /** @var bool|string 獲取php 有777權限的臨時文件目錄 */
        $this->temp_dir = Yii::getAlias("@runtime");
    }

    /**
     * 截圖并上傳
     * @param string $url
     * @param string $filename
     * @return string
     * @throws BizException
     */
    public function screenShotThenSaveToOss(string $url, string $filename = "temp.jpg")
    {
        //輸出圖片的路徑
        $outputFilePath = "{$this->temp_dir}/$filename";
        //執行的phantomjs命令
        //phantomjs 可執行文件必須是 絕對路徑 否則導致 exec 函數返回值127錯誤
        $cmd = "usrlocalinphantomjs {$this->js_path} "$url" "$outputFilePath"";
        //捕捉不到phantomjs命令輸出結果
        exec($cmd, $output);
        //檢查截圖文件是否存在
        $isShotImgaeExist = file_exists($outputFilePath);
        if (!$isShotImgaeExist) {
            throw new BizException(0, "phantomjs截圖失敗", BizException::SELF_DEFINE);
        }
        //保存截圖到oss
        $result = $this->postScreenShotImageToOss($outputFilePath);
        //刪除臨時文件夾的截圖圖片
        unlink($outputFilePath);
        return $result;
    }


    /**
     * 上傳截圖到阿里云直傳oss
     * @param string $screenshot_path
     * @return string
     */
    public function postScreenShotImageToOss(string $screenshot_path): string
    {
        $ossKey = "raw_file_name";

        $file = new CURLFile($screenshot_path, "image/jpeg", "file");
        $tokenArray = $this->getOssPolicyToken("fetch");
        $url = $tokenArray->host;
        $postData = [
            "key" => "{$tokenArray->dir}/$ossKey",
            "policy" => $tokenArray->policy,
            "OSSAccessKeyId" => $tokenArray->accessid,
            "success_action_status" => "200",
            "signature" => $tokenArray->signature,
            "callback" => $tokenArray->callback,
            "file" => $file
        ];
        $ch = curl_init();
        //$data = array("name" => "Foo", "file" => "@/home/user/test.png");
        curl_setopt($ch, CURLOPT_URL, $url);
        // Disable SSL verification
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_SAFE_UPLOAD, true); // required as of PHP 5.6.0
        curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 20);
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
        //curl_setopt($ch, CURLOPT_HTTPHEADER, ["Content-Type: $mime_type"]);

        $res = curl_exec($ch);
        $res = json_decode($res);
        curl_close($ch);
        if (empty($res) || $res->code != 0) {
            return "";
        } else {
            return $res->data->url;
        }
    }

    /**
     * 調用管理后臺阿里云oss token接口
     * @param null $url
     * @return array
     */
    public function getOssPolicyToken($url = null)
    {
        $url = Yii::$app->params["oss_screen_shot_token_api"];
        $ch = curl_init();
        // Disable SSL verification
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
        // Will return the response, if false it print the response
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        // Set the url
        curl_setopt($ch, CURLOPT_URL, $url);
        // Execute
        $result = curl_exec($ch);
        // Closing
        curl_close($ch);
        $res = json_decode($result);
        if (empty($res) || $res->code != 0) {
            return [];
        } else {
            return $res->data;
        }
    }
}

"use strict";
var system = require("system");
var webPage = require("webpage");
var page = webPage.create();
//設置phantomjs的瀏覽器user-agent
page.settings.userAgent = "Mozilla/5.0 (iPhone; CPU iPhone OS 11_0 like Mac OS X) AppleWebKit/604.1.38 (KHTML, like Gecko) Version/11.0 Mobile/15A372 Safari/604.1";

//獲取php exec 函數的命令行參數
if (system.args.length !== 3) {
    console.log(system.args);
    console.log("參數錯誤");
    console.log("第2個參數為url地址 第3個參數為截圖文件名稱");
    phantom.exit(1);
}

//命令行 截圖網址參數
var url = system.args[1];
//圖片輸出路徑
var filePath = system.args[2];
console.log("-------");
console.log(url);
console.log("-------");
console.log(filePath);
console.log("-------");

//設置瀏覽器視口
page.viewportSize = {width: 480, height: 960};
//打開網址
page.open(url, function start(status) {
    //1000ms之后開始截圖
    setTimeout(function () {
        //截圖格式為jpg 80%的圖片質量
        page.render(filePath, {format: "jpg", quality: "80"});
        console.log("success");
        //退出phantomjs 避免phantomjs導致內存泄露
        phantom.exit();
    }, 1000);
});