Core

• PHP_OUTPUT_HANDLER_PROCESSED
• PHP_SBINDIR

cURL

• CURL_HTTP_VERSION_3
• CURL_HTTP_VERSION_3ONLY
• CURL_TCP_KEEPCNT
• CURLOPT_PREREQFUNCTION
• CURL_PREREQFUNC_OK
• CURL_PREREQFUNC_ABORT
• CURLOPT_SERVER_RESPONSE_TIMEOUT
• CURLOPT_DEBUGFUNCTION
• CURLINFO_TEXT
• CURLINFO_HEADER_IN
• CURLINFO_DATA_IN
• CURLINFO_DATA_OUT
• CURLINFO_SSL_DATA_OUT
• CURLINFO_SSL_DATA_IN
• CURLINFO_POSTTRANSFER_TIME_T

Intl

• PATTERN (IntlDateFormatter )
• PROPERTY_IDS_UNARY_OPERATOR (IntlChar )
• PROPERTY_ID_COMPAT_MATH_START
• PROPERTY_ID_COMPAT_MATH_CONTINUE

LDAP

• LDAP_OPT_X_TLS_PROTOCOL_MAX
• LDAP_OPT_X_TLS_PROTOCOL_TLS1_3

libxml

• LIBXML_RECOVER
• LIBXML_NO_XXE . This is used together with LIBXML_NOENT when entity substitution should be performed, while disallowing external entity loading. This constant is available as of libxml2 2.13.

MySQLi

• MYSQLI_TYPE_VECTOR

OpenSSL

• X509_PURPOSE_OCSP_HELPER
• X509_PURPOSE_TIMESTAMP_SIGN

PCNTL

• SIGCKPT (DragonFlyBSD only)
• SIGCKPTEXIT (DragonFlyBSD only)
• WEXITED
• WSTOPPED
• WNOWAIT
• P_ALL
• P_PID
• P_PGID
• P_PIDFD (Linux only)
• P_UID (NetBSD/FreeBSD only)
• P_GID (NetBSD/FreeBSD only)
• P_SID (NetBSD/FreeBSD only)
• P_JAILID (FreeBSD only)

PGSQL

• PGSQL_TUPLES_CHUNK

POSIX

• POSIX_SC_CHILD_MAX
• POSIX_SC_CLK_TCK

Sockets

The following socket options are now defined if they are supported:

• SO_EXCLUSIVEADDRUSE (Windows only)
• SOCK_CONN_DGRAM (NetBSD only)
• SOCK_DCCP (NetBSD only)
• TCP_SYNCNT (Linux only)
• SO_EXCLBIND (Solaris/Illumos only)
• SO_NOSIGPIPE (macOS and FreeBSD)
• SO_LINGER_SEC (macOS only)
• IP_PORTRANGE (FreeBSD/NetBSD/OpenBSD only)
• IP_PORTRANGE_DEFAULT (FreeBSD/NetBSD/OpenBSD only)
• IP_PORTRANGE_HIGH (FreeBSD/NetBSD/OpenBSD only)
• IP_PORTRANGE_LOW (FreeBSD/NetBSD/OpenBSD only)
• SOCK_NONBLOCK
• SOCK_CLOEXEC
• SO_BINDTOIFINDEX

Sodium

• SODIUM_CRYPTO_AEAD_AEGIS128L_KEYBYTES
• SODIUM_CRYPTO_AEAD_AEGIS128L_NSECBYTES
• SODIUM_CRYPTO_AEAD_AEGIS128L_NPUBBYTES
• SODIUM_CRYPTO_AEAD_AEGIS128L_ABYTES
• SODIUM_CRYPTO_AEAD_AEGIS256_KEYBYTES
• SODIUM_CRYPTO_AEAD_AEGIS256_NSECBYTES
• SODIUM_CRYPTO_AEAD_AEGIS256_NPUBBYTES
• SODIUM_CRYPTO_AEAD_AEGIS256_ABYTES

Tokenizer

• T_PUBLIC_SET
• T_PROTECTED_SET
• T_PRIVATE_SET

XML

• XML_OPTION_PARSE_HUGE which allows parsing large inputs with xml_parse() and xml_parse_into_struct() .