(PHP 5, PHP 7) Rolls back current transaction bool mysqli::rollback ([ int $flags [, string $name ]] ) Object oriented style Procedural style bool mysqli_rollback ( mysqli $link [, int $flags [, string $name ]] ) Rollbacks the current transaction for the database. Parameters: link Procedural style only: A link identifier returned by mysqli_connect() or mysqli_init()

(PHP 5 >= 5.4.0, PHP 7) Creates SNMP instance representing session to remote SNMP agent public SNMP::__construct ( int $version , string $hostname , string $community [, int $timeout = 1000000 [, int $retries = 5 ]] ) The function description goes here. Parameters: version SNMP protocol version: SNMP::VERSION_1, SNMP::VERSION_2C, SNMP::VERSION_3. hostname

(PECL runkit >= 0.7.0) Replace a function definition with a new implementation bool runkit_function_redefine ( string $funcname, string $arglist, string $code ) Note: By default, only userspace functions may be removed, renamed, or modified. In order to override internal functions, you must enable the runkit.internal_override setting in php.ini. Parameters: funcname

(PECL stats >= 1.0.0) Not documented float stats_dens_pmf_poisson ( float $x, float $lb ) Parameters: x lb Returns: This function is currently not documented; only its argument list is available.

(PHP >= 5.3.0, PECL phar >= 2.0.0) Convert a phar archive to a non-executable tar or zip file PharData PharData::convertToData ([ int $format [, int $compression [, string $extension ]]] ) This method is used to convert a non-executable tar or zip archive to another non-executable format. If no changes are specified, this method throws a BadMethodCallException. This method should be used to convert a tar archive to z

(PECL ev >= 0.2.0) Abstract constructor of a watcher object abstract public EvWatcher::__construct ( void ) EvWatcher::__construct() is an abstract constructor of a watcher object implemented in the derived classes.

(PECL mongo >=1.3.0) Perform an aggregation using the aggregation framework public array MongoCollection::aggregate ( array $pipeline [, array $options ] ) public array MongoCollection::aggregate ( array $op [, array $op [, array $... ]] ) The MongoDB » aggregation framework provides a means to calculate aggregated values without having to use MapReduce. While MapReduce is powerful, it is often more difficult than necess

(PHP 4, PECL pdflib >= 1.0.0) Add bookmark for current page [deprecated] This function is deprecated, use PDF_create_bookmark() instead.

(PHP 5, PHP 7) Append bucket to brigade void stream_bucket_append ( resource $brigade, object $bucket ) This function is currently not documented; only its argument list is available.

(PECL imagick 2.0.0) Frees all associated resources bool ImagickDraw::destroy ( void ) Frees all resources associated with the ImagickDraw object. Returns: No value is returned. This function is currently not documented; only its argument list is available.