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PHP is a widely-used general-purpose scripting language that is especially suited for Web development. The curl is a tool to transfer data from or to a server, using one of the supported protocols, and PHP have in-built libraries to handle the Curl. But sometimes we could face some issues, like not showing up errors. In this post, we are addressing this issue.
Identifying the problem
One common problem with using curl in PHP is it doesn’t show any error message if anything wrong with it, and it returns nothing. So it can be really difficult, for a developer to find out where the problem actually is, when something goes wrong.
Solution to the Problem
But there are methods that can help to figure out what is wrong when using Curl in PHP.
The two function we are going to use are curl_errno() and curl_error().
- curl_errno(): This function returns the last error number
- curl_error(): This function returns a clear text error message for the last cURL operation
$cSession = curl_init();
// setup your curl session as usual
if(curl_errno($cSession)){
echo 'Curl error: ' . curl_error($cSession);
}
In the above code, we are checking if there are any error occurred in curl request using curl_errno function, then it returns the error message using curl_error function.
Step by step explanation
- First, initialize the curl session using the curl_init() function.
- Set up your curl session as per your requirement.
- Then check for the curl error using the PHP built-in function curl_errno(). It returns the error number if there are any error occurred, else it returns 0.
- If there are any errors, then curl_error() function returns the clear text error message.
The importance of error handling in Curl PHP
Error handling is a vital part, not only in Curl PHP but in any programming language. It helps to identify if there are any issues occurring in our code, so we could fix those issues and makes sure it runs smoothly in production. In the case of Curl PHP, error handling helps to determine the issue in our HTTP request. It could be a server issue, or a client-side issue, or the request data issue, etc. and it’s important to solve them, that’s why error handling exists.
I hope this article helps you in handling the ‘Curl PHP show error’ issue better. It’s a common yet troublesome issue that can dilute the efficacy of your web development work, but with the right approach and understanding, it’s easy to rectify. Remember, the key to being an effective PHP developer is to always be learning. Stay up-to-date with the changing standards and norms in the world of PHP and Curl – your work will benefit from your consistent pursuit of knowledge! The more you understand, the less these errors will affect you.
While we discussed Curl in PHP, in the next articles soon to be released, we will be exploring more such libraries that can be worked with PHP. Tune in then!
