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This document uses PHP Chinese website manual Release
X509_PURPOSE_SSL_CLIENT
( integer )
X509_PURPOSE_SSL_SERVER
( integer )
X509_PURPOSE_NS_SSL_SERVER
( integer )
X509_PURPOSE_SMIME_SIGN
( integer )
X509_PURPOSE_SMIME_ENCRYPT
( integer )
X509_PURPOSE_CRL_SIGN
( integer )
X509_PURPOSE_ANY
( integer )