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我發現了一個提供屏幕捕獲服務的網站http://ctrlq.org/screenshots/。我想批量請求從多個URL獲取屏幕截圖,所以我已經編寫了一個PHP cURL腳本來以編程方式執行此操作。PHP cURL用正確的POST數據返回意外的結果
爲了從這個Web服務獲取屏幕截圖圖像,它需要POST數據以及需要捕獲的安全代碼和網站URL。
下面的代碼是捲曲的腳本,做上述兩項行動
$url = 'http://ctrlq.org/screenshots/';
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
$content = curl_exec($ch);
preg_match('/<input type="hidden" name="labnol" value="(.*)" \/>/', $content, $match);
$postData = array(
'labnol' => $match[1],
'url' => 'http://www.google.com'
);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postData);
curl_setopt($ch, CURLOPT_COOKIEJAR, $cookieFile);
curl_exec($ch);
$content2 = curl_exec($ch);
curl_close($ch);
echo $content2;
不幸的是,我得到了源代碼:
Sorry but the tool couldn't capture that web page. Please <a href='/screenshots/'>try another URL</a>.
雖然成功的代碼應包含畫面捕獲圖像鏈接:
<div class="animate" id="progressmeter">
<div class="progress progress-striped active">
<div class="bar" style="width: 0%;"></div>
</div>
</div>
<script>
var progress = setInterval(function() {
var $bar = $('.bar');
if ($bar.width()==300) {
clearInterval(progress);
$('.progress').removeClass('active');
document.getElementById('progressmeter').innerHTML = "<a class='btn btn-success btn-large' href='http://ctrlq.org/files/screenshots/0e82990496751f51e3329094b26bd4a1.png' target='_blank'><i class='icon-download icon-white'></i> Download Image</a> <a class='btn-large btn btn-info' href='/screenshots/'><i class='icon-camera icon-white'></i> New Capture</a>";
} else {
$bar.width($bar.width()+30);
}
$bar.text($bar.width()/3 + 10 + "%");
}, 1500);
</script>
我想問一下這個cURL scr是否有錯誤IPT?謝謝。