PHP Různé Funkce
Úvod do různých PHP
Různé funkce sem byly umístěny pouze proto, že se zdálo, že žádná z ostatních kategorií nesedí.
Instalace
Různé funkce jsou součástí jádra PHP. Pro použití těchto funkcí není nutná žádná instalace.
Konfigurace běhového prostředí
Chování různých funkce je ovlivněna nastavením v souboru php.ini.
Různé možnosti konfigurace:
| 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 |
Různé funkce 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 |
Předdefinované PHP Různé. Konstanty
| 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__ |