You can specify two, three or more parameters in exactly the same way. Each parameter is separated from each other with a comma. <?php// function to find the average numberfunctionaverage($x,$y){return($x+$y) /2; }average(1,5);// 3average(1,2);// 1.5 ...
The first parameter of the constructor should always be the parameter name. This is a little strange, because PHP does not support the concept of 'named variables', like other languages do. Internally, this name is only used to generate an error messages when your function is called in the...
This is a built-in function in PHP. It returns True if the value is found in the array, otherwise it returns False. In the parameters of this function, if the search parameter is a string and the type parameter is set to TRUE, the search would be case-sensitive. To understand this ...
Parameter Values ParameterDescription dataRequired. Specifies a well-formed XML string or the path or URL to an XML document if data_is_url is TRUE optionsOptional. Specifies additional Libxml parameters. Is set by specifying the option and 1 or 0 (TRUE or FALSE, e.g. LIBXML_NOBLANKS(1)...
returnType functionName(parameter1, parameter2, parameter3) { // code to be executed}In the example below, the function takes a string of characters with name as parameter. When the function is called, we pass along a name, which is used inside the function to print "Hello" and the nam...
Return Value: Returns TRUE if the value is found in the array, or FALSE otherwise PHP Version: 4+ Changelog: As of PHP 4.2, the search parameter may now be an arrayMore ExamplesExample 1 Using all parameters: <?php $people = array("Peter", "Joe", "Glenn", "Cleveland", 23);if (...
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If you're working with functions that are not part of the PHP core (i.e., that need to be enabled by users), it's a smart move to use thefunction_exists()function. This takes a function name as its only parameter and returns true if that function (either built-in or one you've...
不要修改php.ini文件,改成mysqli_connect()就可以了 全局替换后 报错:Warning: mysqli_error() expects exactly 1 parameter, 0 given in $con =mysqli_connect( $dbhost, $dbuser, $dbpass );if( !$con ) { die('数据库链接出错,请检查账号密码及地址是否正确:'. mysqli_error() ); ...
'./data/cache/cache_'.$cachename.'.php'); } /** * Portal模块 * @param $parameter - 参数集合 */ function block_get($parameter) { global $_G; static $allowmem; if($allowmem === null) { include_once libfile('function/block'); ...