Which of the following PHP functions can be used to build a function that accepts any number of arguments?

7 Answers. In PHP, use the function func_get_args to get all passed arguments.

Which one of the following PHP functions can be used to build a function that accepts any number of arguments Mcq?

Solution(By Examveda Team)

php function foo() { $args = func_get_args(); foreach ($args as $k => $v) { echo “arg”. ($k+1).

Which function is used to build a function that accepts any number of arguments?

In mathematics and in computer programming, a variadic function is a function of indefinite arity, i.e., one which accepts a variable number of arguments. Support for variadic functions differs widely among programming languages. The term variadic is a neologism, dating back to 1936–1937.

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Which of the following PHP functions can be used to get the current memory usage?

Which of the following PHP functions can be used to get the current memory usage? Explanation: memory_get_usage() returns the amount of memory, in bytes, that’s currently being allocated to the PHP script. We can set the parameter ‘real_usage’ to TRUE to get total memory allocated from system, including unused pages.

Which of the following PHP function can be used for generating unique ideas?

The uniqid() function in PHP is an inbuilt function which is used to generate a unique ID based on the current time in microseconds (micro time).

How many types of functions are available in PHP?

Types of Functions in PHP. There are two types of functions as: Internal (built-in) Functions. User Defined Functions.

Which of the following PHP functions is used to determine a files last access time?

The fileatime() function in PHP is an inbuilt function which is used to return the last access time of a specified file. The fileatime() function returns the last access time of a file as a Unix Timestamp on success and False on failure.

Which of the following are valid function declarations in PHP?

5. Which of the following are valid function names? Explanation: A valid function name can start with a letter or underscore, followed by any number of letters, numbers, or underscores. According to the specified regular expression ([a-zA-Z_x7f-xff][a-zA-Z0-9_x7f-xff]*), a function name like this one is valid.

Which of the following functions are used to implement variable number of arguments PHP?

Variable-length argument lists. PHP has support for variable-length argument lists in user-defined functions. This is implemented using the … token in PHP 5.6 and later, and using the func_num_args(), func_get_arg(), and func_get_args() functions in PHP 5.5 and earlier.

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What is PHP call function?

A function is a self-contained block of code that performs a specific task. PHP has a huge collection of internal or built-in functions that you can call directly within your PHP scripts to perform a specific task, like gettype() , print_r() , var_dump , etc.

Which PHP function is used to find files?

PHP File_exists Function

This function is used to determine whether a file exists or not. It comes in handy when we want to know if a file exists or not before processing it.

Which of the following function is used to find files in PHP?

PHP Filesystem Functions

Function Description
fwrite() Writes to an open file (binary-safe)
glob() Returns an array of filenames / directories matching a specified pattern
is_dir() Checks whether a file is a directory
is_executable() Checks whether a file is executable

Which PHP introduced try catch expect?

6. Which version of PHP introduced Try/catch Exception? Explanation: PHP 5 version and later versions added support for Exception Handling.

Which of the following function can be used for generating unique ids?

The uniqid() function generates a unique ID based on the microtime (the current time in microseconds).

What is Mt_rand function in PHP?

The mt_rand() function is a drop-in replacement for the older rand(). It uses a random number generator with known characteristics using the » Mersenne Twister, which will produce random numbers four times faster than what the average libc rand() provides.

What is Microtime function in PHP?

The microtime() function is an inbuilt function in PHP which is used to return the current Unix timestamp with microseconds. … Return Value: It returns the string microsec sec by default, where sec is the number of seconds since the Unix Epoch (0:00:00 January 1, 1970, GMT), and microsec is the microseconds part.

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