PHP双向认证 请问：JAVA的代码，要改为PHP应该怎样改啊？

//https协议
//与服务器证书认证
System.setProperty("java.protocol.handler.pkgs", "com.ibm.net.ssl.internal.www.protocol");
System.setProperty( "javax.net.ssl.trustStoreType", "jks");
System.setProperty( "javax.net.ssl.trustStore", "/home/tomcat/cert/ca.jks");
System.setProperty( "javax.net.ssl.trustStorePassword", "123456");
//客户端PKCS12格式证书
System.setProperty("javax.net.ssl.keyStoreType", "pkcs12");
System.setProperty("javax.net.ssl.keyStore", "/home/tomcat/cert/abcd.pfx");
System.setProperty("javax.net.ssl.keyStorePassword", "123456");
String certLocalPath = "/home/tomcat/cert/xhds.pfx"; //证书地址

还有PHP（APACHE）是不是不支持PFX证书的？要怎样处理？谢谢！