How does php curl return an error?

php curl returns an error method: first create a cURL handle pointing to a non-existent location; then use the "curl_error" function to return an error message with a clear text of the latest cURL operation; finally close the handle. .

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

How does php curl return an error?

curl_error — Returns a string that protects the most recent error in the current session

Description

string curl_error ( resource $ch )

Returns an explicit textual error message for the most recent cURL operation.

Parameters

ch

The cURL handle returned by curl_init().

Return Value

Returns an error message or '' (empty string) if no error occurs.

Example

<?php
// 创建一个指向一个不存在的位置的cURL句柄
$ch = curl_init(&#39;http://404.php.net/&#39;);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
if(curl_exec($ch) === false)
{
    echo &#39;Curl error: &#39; . curl_error($ch);
}
else
{
    echo &#39;操作完成没有任何错误&#39;;
}
// 关闭句柄
curl_close($ch);
?>

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