# 补充\*新增的全局常量

> 参考：[新增的全局常量](https://secure.php.net/manual/zh/migration71.constants.php)

## 新增的全局常量

### [PHP 核心中预定义的常量](https://php.net/manual/zh/reserved.constants.php)

* `PHP_FD_SETSIZE`

### [CURL](https://php.net/manual/zh/book.curl.php)

* `CURLMOPT_PUSHFUNCTION`
* `CURL_PUSH_OK`
* `CURL_PUSH_DENY`

### [Data Filtering](https://php.net/manual/zh/book.filter.php)

* `FILTER_FLAG_EMAIL_UNICODE`

### [Image Processing and GD](https://php.net/manual/zh/book.image.php)

* `IMAGETYPE_WEBP`

### [JSON](https://php.net/manual/zh/book.json.php)

* `JSON_UNESCAPED_LINE_TERMINATORS`

### [LDAP](https://php.net/manual/zh/book.ldap.php)

* `LDAP_OPT_X_SASL_NOCANON`
* `LDAP_OPT_X_SASL_USERNAME`
* `LDAP_OPT_X_TLS_CACERTDIR`
* `LDAP_OPT_X_TLS_CACERTFILE`
* `LDAP_OPT_X_TLS_CERTFILE`
* `LDAP_OPT_X_TLS_CIPHER_SUITE`
* `LDAP_OPT_X_TLS_KEYFILE`
* `LDAP_OPT_X_TLS_RANDOM_FILE`
* `LDAP_OPT_X_TLS_CRLCHECK`
* `LDAP_OPT_X_TLS_CRL_NONE`
* `LDAP_OPT_X_TLS_CRL_PEER`
* `LDAP_OPT_X_TLS_CRL_ALL`
* `LDAP_OPT_X_TLS_DHFILE`
* `LDAP_OPT_X_TLS_CRLFILE`
* `LDAP_OPT_X_TLS_PROTOCOL_MIN`
* `LDAP_OPT_X_TLS_PROTOCOL_SSL2`
* `LDAP_OPT_X_TLS_PROTOCOL_SSL3`
* `LDAP_OPT_X_TLS_PROTOCOL_TLS1_0`
* `LDAP_OPT_X_TLS_PROTOCOL_TLS1_1`
* `LDAP_OPT_X_TLS_PROTOCOL_TLS1_2`
* `LDAP_OPT_X_TLS_PACKAGE`
* `LDAP_OPT_X_KEEPALIVE_IDLE`
* `LDAP_OPT_X_KEEPALIVE_PROBES`
* `LDAP_OPT_X_KEEPALIVE_INTERVAL`

### [PostgreSQL](https://php.net/manual/zh/book.pgsql.php)

* `PGSQL_NOTICE_LAST`
* `PGSQL_NOTICE_ALL`
* `PGSQL_NOTICE_CLEAR`

### [SPL](https://php.net/manual/zh/book.spl.php)

* `MT_RAND_PHP`


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