Added constant "\PDO::MYSQL_ATTR_SSL_VERIFY_SERVER_CERT"

- As per https://bugs.php.net/bug.php?id=71003
- Implemented at http://git.php.net/?p=php-src.git;a=blobdiff;f=ext/pdo_mysql/pdo_mysql.c;h=99fb6d3b77154c2f9928dd90e4f3c4b4f76d9611;hp=32b85ba54736e4f5bc79ceb5a486242d72da511a;hb=247ce052cd0fc7d0d8ea1a0e7ea2075e9601766a;hpb=b224e7426713befd7449117afd68355231f9077e
- As of 7.0.18 and 7.1.4 (see http://php.net/ChangeLog-7.php)
- PR at php/php-src#1972

PDO/PDO.php

@@ -710,6 +710,18 @@ class PDO  {
 	 */
 	const MYSQL_ATTR_MULTI_STATEMENTS = 1015;
 
+	/**
+	 * <p>
+	 * Disables SSL peer verification when set to FALSE.
+	 * </p>
+  * <p>
+  * Note, this constant is not yet documented on the php.net documentation.
+  * </p>
+	 * @since 7.0.18 and 7.1.4
+	 * @link https://bugs.php.net/bug.php?id=71003
+	 */
+	const MYSQL_ATTR_SSL_VERIFY_SERVER_CERT = 1016;
+
 	/**
 	 * @deprecated 5.6.0 Use PDO::ATTR_EMULATE_PREPARES instead.
 	 */