How to Fix \"SSLRead() return error -9806\" in Curl POST Requests on OSX 10.10 Yosemite?

SSLRead() Error in Curl POST to HTTPS URL on OSX 10.10 Yosemite

Issue:

After upgrading to OSX 10.10 Yosemite, CURL POST requests to HTTPS URLs are failing with the error:

Error Number:56
Error String:SSLRead() return error -9806

Cause:

This error occurs when PHP is compiled with a version of cURL that uses Apple's Secure Transport under Yosemite, and the target URL does not support SSLv3.

Solution:

To resolve this issue, install a version of PHP that uses a version of cURL that uses OpenSSL instead of Secure Transport. Here are the steps:

1. Check cURL Version:

php -i | grep "SSL Version"

If the output is "SecureTransport," proceed to the next step.

2. Install Homebrew:

brew install homebrew/core/homebrew
brew update

3. Tap Required Repositories:

brew tap homebrew/dupes
brew tap homebrew/versions
brew tap homebrew/php

4. Install cURL with OpenSSL:

brew install --with-openssl curl

5. Install PHP with Homebrew cURL and OpenSSL:

brew install --with-homebrew-curl --with-httpd24 php55

6. Configure Apache (if using):

Add the following line to /etc/apache2/httpd.conf:

LoadModule php5_module    /usr/local/opt/php55/libexec/apache2/libphp5.so

7. Start PHP-FPM for nginx (if using):

mkdir -p ~/Library/LaunchAgents
cp /usr/local/opt/php55/homebrew.mxcl.php55.plist ~/Library/LaunchAgents/
launchctl load -w ~/Library/LaunchAgents/homebrew.mxcl.php55.plist

8. Install PHP Extensions (optional):

brew install php55-mcrypt

9. Verify OpenSSL:

php -i | grep "SSL Version"

The output should show "OpenSSL/1.0.2h."

Now, your CURL POST requests to HTTPS URLs should succeed without the SSLRead() error.

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