bool
assert(Mixed $assertion [, String $description])-Checks whether an assertion is
FALSE
Copy Code code as follows:
Assert_options (assert_active, true);//allow use of the ASSERT () function
Assert_options (assert_warning, false);//Do not export warning message when ASSERT fails
Assert_options (Assert_bail, True), terminating code execution after//assert failure
Assert_options (Assert_callback, ' getmsg '), terminating code execution after//assert failure.
Echo ' begins:<br/> ';
Assert (' mysql_query (") ');
echo ' Test success! ';
function getmsg () {
Echo ' went wrong! ';
}
Mixed Assert_options(int $what [, mixed $value])-Sets the various control options for assert (), or queries the current settings
Assert_active: Assert () assertion is enabled, INI configuration assert.active, default value 1
Assert_warning: Whether to generate a PHP warning for each failed assertion, INI configuration assert.warning, default 1
Assert_bail: Abort execution if assertion fails, INI configuration assert.bail, default value 0
Assert_quiet_eval: Whether to disable Error_reporting,ini configuration assert.quiet_eval when asserting expression evaluation, default value 0
Assert_callback: Call callback function when assertion fails, INI configuration assert.callback
Copy Code code as follows:
Assert_options (assert_active, true);//allow use of the ASSERT () function
Assert_options (assert_warning, false);//Do not export warning message when ASSERT fails
Assert_options (Assert_bail, True), terminating code execution after//assert failure
Assert_options (Assert_callback, ' getmsg '), terminating code execution after//assert failure.
Echo ' begins:<br/> ';
ASSERT (Is_int (1.2));//The test result is Fales
echo ' Test success! ';
function getmsg () {
Echo ' went wrong! ';
}
BOOL DL (string $library)-Gets the value of the PHP configuration option load the specified PHP extension
Copy Code code as follows:
if (!extension_loaded (' SQLite ')) {//test whether the specified extension is active
$prefix = (Php_shlib_suffix = = ' dll ')? ' Php_ ': ';
DL ($prefix. ' SQLite. ' Php_shlib_suffix);
}
int Gc_collect_cycles ()-forces collection of all existing garbage cycles
void gc_disable (void)-Deactivate circular reference collector
void gc_enable (void)-Activate circular reference collector
BOOL Gc_enabled (void)-Returns the state of a circular reference counter
String Get_cfg_var (String $option)-Get the value of the PHP configuration option to get the value of the PHP configuration option
String Get_current_user (void)-Gets the current PHP script owner name
Array get_defined_constants ([bool $categorize = false])-Returns an associative array of all constants
Array Get_extension_funcs (String $module _name)-Returns an array of module function names
Copy Code code as follows:
Print_r (Get_extension_funcs ("xml"));
String Get_include_path (void)-Gets the current include_path configuration option
Array get_included_files (void)-Returns an array of include and require file names
Copy Code code as follows:
Include ' test1.php ';
Include_once ' test2.php ';
Require ' test3.php ';
Require_once ' test4.php ';
$included _files = Get_included_files ();
foreach ($included _files as $filename) {
echo "$filename \ n";
}
Array get_loaded_extensions ([bool $zend _extensions = false])-Returns an array of all compiled and loaded module names
BOOL Get_magic_quotes_gpc (void)-Gets the configuration option settings for the current MAGIC_QUOTES_GPC
BOOL Get_magic_quotes_runtime (void)-Gets the active status of the current magic_quotes_runtime configuration option
String getenv (String $varname)-Gets the value of an environment variable
Copy Code code as follows:
$ip = getenv (' remote_addr ');
int getlastmod (void)-Gets the time when the page was last modified
int Getmygid (void)-Gets the GID for the current PHP script owner
int Getmyinode (void)-Gets the index node (inode) of the current script
int getmypid (void)-Gets the ID of the PHP process
int Getmyuid (void)-Gets the UID of the PHP script owner
Array getopt (string $options [, array $longopts])-Get options from the command line argument list
Array getrusage ([int $who = 0])-Get current Resource usage
Array Ini_get_all ([string $extension [, bool $details = true]]-Get all configuration options
Copy Code code as follows:
Print_r (Ini_get_all ("Pcre"));
Print_r (Ini_get_all ());
String Ini_get (String $varname)-Gets the value of a configuration option
void Ini_restore (String $varname)-Default value for restore configuration options
String Ini_set (String $varname, String $newvalue)-set value for a configuration option
main-virtual main () int memory_get_peak_usage ([bool $real _usage = false])-Returns the peak int memory_get_usage allocated to PHP memory ([bool $r Eal_usage = false])-Returns the amount of memory allocated to PHP
String Php_ini_loaded_file (void)-Gets the path of the loaded php.ini file
String Php_ini_scanned_files (void)-Returns a list of. ini files parsed from the additional INI directory
String Php_sapi_name (void)-Returns the type of interface between the Web server and PHP
String Php_uname ([String $mode = "a"])-Returns information about the system running PHP
' A ': This is the default all.
' s ': Operating system name
' n ': host name. For example: localhost.example.com.
' R ': version name, for example: 5.1.2-release.
' V ': version information. There is a big difference between the operating system.
' m ': machine type. For example: i386.
BOOL Phpcredits ([int $flag = Credits_all])-Print list of PHP contributors
Credits_all: All
Credits_docs: Document Group Contribution list
Credits_fullpage: Often used in combination with other flags. Indicates that you need to print a separate HTML page that contains information about other flags.
Credits_general: Universal list: Language design and ideas, PHP authors, and SAPI modules
Credits_group: List of core developers
credits_modules:php Extension Module and author
credits_sapi:php Server API module and author
Copy Code code as follows:
Phpcredits (Credits_group | Credits_docs | Credits_fullpage);
BOOL Phpinfo ([int $what = Info_all])-Output information about the PHP configuration
String Phpversion ([string $extension])-Get current version of PHP
BOOL Putenv (String $setting)-Set the value of an environment variable
void Restore_include_path (void)-value of the Restore include_path configuration option
String Set_include_path (String $new _include_path)-Set include_path configuration options
void Set_time_limit (int $seconds)-Sets the maximum execution time for the script, starting with the timer itself, 0 indicates unlimited
String Sys_get_temp_dir (void)-Returns the directory used for temporary files
Mixed Version_compare (String $version 1, String $version 2 [, String $operator])-Compare two PHP normalized version number strings
Copy Code code as follows:
if (Version_compare (php_version, ' 5.3.0 ') >= 0) {
Echo ' My PHP version is very high: '. Php_version. "\ n";
}
int zend_thread_id (void)-Returns a unique identifier for the current thread
String zend_version (void)-Gets the version of the current Zend engine
