(PHP 5, PHP 7) Get the number of fields in a result set int ibase_num_fields ( resource $result_id ) Get the number of fields in a result set. Parameters: result_id An InterBase result identifier. Returns: Returns the number of fields as an integer. Examples: ibase_num_fields() exampl

(PECL zmq >= 0.5.0) Construct a new ZMQContext object ZMQContext::__construct ([ integer $io_threads = 1 [, boolean $is_persistent = true ]] ) Constructs a new ZMQ context. The context is used to initialize sockets. A persistent context is required to initialize persistent sockets. Parameters: io_threads Number of io-threads in the context. is_

(PHP 5, PHP 7) Checks if iterateable public bool ReflectionClass::isIterateable ( void ) Checks whether the class is iterateable. Returns: Returns TRUE on success or FALSE on failure. Examples: ReflectionClass::isIterateable() example <?php class IteratorClass implements Iterator {     public function __construct() { 

(PECL mongo >=0.9.0) Returns the current file public MongoGridFSFile MongoGridFSCursor::current ( void ) Returns: The current file.

(PECL haru >= 0.0.1) Set the appearance of the page bool HaruDestination::setXYZ ( float $left, float $top, float $zoom ) Defines the appearance of the page using three parameters: left, top and zoom. Parameters: left The left position of the page. top The top position of the page. zoom The magnifi

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Determine the type of an image int exif_imagetype ( string $filename ) exif_imagetype() reads the first bytes of an image and checks its signature. exif_imagetype() can be used to avoid calls to other exif functions with unsupported file types or in conjunction with $_SERVER['HTTP_ACCEPT'] to check whether or not the viewer is able to see a specific image in the browser. P

(PHP >= 5.4.0) Get security preferences public int XsltProcessor::getSecurityPrefs ( void ) Gets the security preferences. Returns: A bitmask consisting of XSL_SECPREF_READ_FILE, XSL_SECPREF_WRITE_FILE, XSL_SECPREF_CREATE_DIRECTORY, XSL_SECPREF_READ_NETWORK, XSL_SECPREF_WRITE_NETWORK.

(PECL fann >= 1.0.0) Returns the sarprop step error threshold factor float fann_get_sarprop_step_error_threshold_factor ( resource $ann ) The sarprop step error threshold factor. The default factor is 0.1. Parameters: ann Neural network resource. Returns: The sarprop step error threshold factor, or FALSE on error.

(PECL cairo >= 0.1.0) Description int cairo_scaled_font_get_type ( CairoScaledFont $scaledfont ) The function description goes here. Parameters: scaledfont Description... Returns: What is returned on success and failure This function is currently not documented; only its argument list is available.

Examples: Variable function example PHP supports the concept of variable functions. This means that if a variable name has parentheses appended to it, PHP will look for a function with the same name as whatever the variable evaluates to, and will attempt to execute it. Among other things, this can be used to implement callbacks, function tables, and so forth. Variable functions won't work with language constructs such as echo, print, unset(), isset(), empty(), includ