What to do if php curl download fails

php curl download failed solution: first open the corresponding PHP file; then add "curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);" and other code statements and save the changes.

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

The reason why PHP CURL cannot be downloaded, https Site

Use php curl to download, http site can, but https site cannot capture the content.

Solution

Add 3 lines

 curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 1);
 curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
 curl_setopt($ch, CURLOPT_CAINFO, \Yii::getAlias('@app/config/cacert.pem'));

Download cacert.pem

Download address: https://curl.haxx .se/docs/caextract.html

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