ios，php推送报错

php已经加载openssl模块，防火墙关闭，报错如下：

   

Warning: stream_socket_client() [function.stream-socket-client]: Unable to set local cert chain file `ck.pem'; Check that your cafile/capath settings include details of your certificate and its issuer in /web1/app/testdeom.php on line 31

Warning: stream_socket_client() [function.stream-socket-client]: failed to create an SSL handle in /web1/app/testdeom.php on line 31

Warning: stream_socket_client() [function.stream-socket-client]: Failed to enable crypto in /web1/app/testdeom.php on line 31

Warning: stream_socket_client() [function.stream-socket-client]: unable to connect to ssl://gateway.sandbox.push.apple.com:2195 (Unknown error) in /web1/app/testdeom.php on line 31
Failed to connect: 0

如果php已经加载openssl模块，并且排除防火墙的原因。
原因：推送证书的问题。
1.确认你的推送证书没问题吗？
生成pem步骤：
1.下载下来你配置好的推送证书aps_developer_identity.cer 文件。
2.转换 .cer 文件到 .pem 文件:
openssl x509 -in aps_developer_identity.cer -inform der 
-out PushChatCert.pem
3.在把你“钥匙”推送证书导出成的.p12到.pem文件:
openssl pkcs12 -nocerts -out PushChatKey.pem -in PushChatKey.p12
Enter Import Password: 
MAC verified OK
Enter PEM pass phrase: 
Verifying - Enter PEM pass phrase: 
4.合并两个pem文件：cat PushChatCert.pem PushChatKey.pem > ck.pem
5.测试证书是否可用：
openssl s_client -connect gateway.sandbox.push.apple.com:2195 
-cert PushChatCert.pem -key PushChatKey.pem

最后

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