You can do this by doing a bulk activity. You can do this by reading the documentation here.
I just updated the php wrapper that we have on the site with our new wrapper. There is a method to do bulkAddContacts. You can find the wrapper in our code samples.
sir, Is it Possible to try addbulkContact from local host.?
As I am doing some R&D from my PC, and I am not getting idea what should be set to "$returnURL" and "$verificationURL".? Also help me what does it means to "$postString" argument in bulkAddContacts($postString).
what content should beset? I am very new to this API. Please help me.
Your $verificationURL should match the callback URI set when you created your API key. If you're working with a localhost, you can use the localhost URL as your callback, and it will operate correctly.
The $postString should be set to the full string that needs to be sent, as outlined in this documentation, for the activity. The function will automatically create the API call for you, but it does not have a utility to build the string.