TRADER_GET_COMPAT(3) 1 TRADER_GET_COMPAT(3)trader_get_compat - Get compatibility modeSYNOPSIS
integer trader_get_compat (void )
DESCRIPTION
Get compatibility mode which affects the way calculations are done by all the extension functions.
RETURN VALUES
Returns the compatibility mode id which can be identified by TRADER_COMPATIBILITY_* series of constants.
PHP Documentation Group TRADER_GET_COMPAT(3)
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PHPVERSION(3) 1 PHPVERSION(3)phpversion - Gets the current PHP versionSYNOPSIS
string phpversion ([string $extension])
DESCRIPTION
Returns a string containing the version of the currently running PHP parser or extension.
PARAMETERS
o $extension
- An optional extension name.
RETURN VALUES
If the optional $extension parameter is specified, phpversion(3) returns the version of that extension, or FALSE if there is no version
information associated or the extension isn't enabled.
EXAMPLES
Example #1
phpversion(3) example
<?php
// prints e.g. 'Current PHP version: 4.1.1'
echo 'Current PHP version: ' . phpversion();
// prints e.g. '2.0' or nothing if the extension isn't enabled
echo phpversion('tidy');
?>
Example #2
PHP_VERSION_ID example and usage
<?php
// PHP_VERSION_ID is available as of PHP 5.2.7, if our
// version is lower than that, then emulate it
if (!defined('PHP_VERSION_ID')) {
$version = explode('.', PHP_VERSION);
define('PHP_VERSION_ID', ($version[0] * 10000 + $version[1] * 100 + $version[2]));
}
// PHP_VERSION_ID is defined as a number, where the higher the number
// is, the newer a PHP version is used. It's defined as used in the above
// expression:
//
// $version_id = $major_version * 10000 + $minor_version * 100 + $release_version;
//
// Now with PHP_VERSION_ID we can check for features this PHP version
// may have, this doesn't require to use version_compare() everytime
// you check if the current PHP version may not support a feature.
//
// For example, we may here define the PHP_VERSION_* constants thats
// not available in versions prior to 5.2.7
if (PHP_VERSION_ID < 50207) {
define('PHP_MAJOR_VERSION', $version[0]);
define('PHP_MINOR_VERSION', $version[1]);
define('PHP_RELEASE_VERSION', $version[2]);
// and so on, ...
}
?>
NOTES
Note
This information is also available in the predefined constant PHP_VERSION. More versioning information is available using the
PHP_VERSION_* constants.
SEE ALSO
PHP_VERSION constants, version_compare(3), phpinfo(3), phpcredits(3), php_logo_guid(3), zend_version(3).
PHP Documentation Group PHPVERSION(3)
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