PHP Varios Funciones
PHP Varios Introducción
La miscelánea Las funciones solo se colocaron aquí porque ninguna de las otras categorías parecía encajar.
Instalación
La miscelánea Las funciones son parte del núcleo de PHP. No se requiere instalación para utilizar estas funciones.
Configuración de tiempo de ejecución
El comportamiento de la miscelánea. funciones se ve afectada por la configuración en el archivo php.ini.
Varios opciones de configuración:
| Name | Description | Default | Changeable |
|---|---|---|---|
| ignore_user_abort | FALSE indicates that scripts will be terminated as soon as they try to output something after a client has aborted their connection | "0" | PHP_INI_ALL |
| highlight.string | Color for highlighting a string in PHP syntax | "#DD0000" | PHP_INI_ALL |
| highlight.comment | Color for highlighting PHP comments | "#FF8000" | PHP_INI_ALL |
| highlight.keyword | Color for syntax highlighting PHP keywords (e.g. parenthesis and semicolon) | "#007700" | PHP_INI_ALL |
| highlight.default | Default color for PHP syntax | "#0000BB" | PHP_INI_ALL |
| highlight.html | Color for HTML code | "#000000" | PHP_INI_ALL |
| browscap | Name and location of browser-capabilities file (e.g. browscap.ini) | NULL | PHP_INI_SYSTEM |
Funciones varias de PHP
| Function | Description |
|---|---|
| connection_aborted() | Checks whether the client has disconnected |
| connection_status() | Returns the current connection status |
| connection_timeout() | Deprecated from PHP 4.0.5. Checks whether the script has timed out |
| constant() | Returns the value of a constant |
| define() | Defines a constant |
| defined() | Checks whether a constant exists |
| die() | Alias of exit() |
| eval() | Evaluates a string as PHP code |
| exit() | Prints a message and exits the current script |
| get_browser() | Returns the capabilities of the user's browser |
| __halt_compiler() | Halts the compiler execution |
| highlight_file() | Outputs a file with the PHP syntax highlighted |
| highlight_string() | Outputs a string with the PHP syntax highlighted |
| hrtime() | Returns the system's high resolution time |
| ignore_user_abort() | Sets whether a remote client can abort the running of a script |
| pack() | Packs data into a binary string |
| php_strip_whitespace() | Returns the source code of a file with PHP comments and whitespace removed |
| show_source() | Alias of highlight_file() |
| sleep() | Delays code execution for a number of seconds |
| sys_getloadavg() | Returns the system load average |
| time_nanosleep() | Delays code execution for a number of seconds and nanoseconds |
| time_sleep_until() | Makes a script sleep until the specified time |
| uniqid() | Generates a unique ID |
| unpack() | Unpacks data from a binary string |
| usleep() | Delays code execution for a number of microseconds |
Varios predefinidos de PHP. constantes
| Constant | Description |
|---|---|
| CONNECTION_ABORTED | Connection is aborted by user or network error |
| CONNECTION_NORMAL | Connection is running normally |
| CONNECTION_TIMEOUT | Connection timed out |
| __COMPILER_HALT_OFFSET__ |