function return value in php

: This article mainly introduces php programming notes. if you are interested in PHP tutorials, please refer to them. Three methods for php to obtain POST data Php image watermarking source code Php + ajax + json is the simplest example. Php Chinese

Php programming notes-three methods for obtaining POST data from small_123 php Php image watermarking source code Php + ajax + json is the simplest example. Php Chinese character to pinyin source code Php traverses the Directory, generates the md5

Three ways to get post data from PHP PHP image plus watermark source code One of the simplest examples of Php+ajax+json PHP Chinese Pinyin Source code PHP iterates through directories, generates MD5 values for each file in the directory, and writes

function luhn_checker($card_num,$sum){ .... return ?; That is, you can return a bool value and return a value such as $sum, and the function needs to determine whether it is true or false if(luhn_checker($card_num)){ } Reply content:

return value The user-space function uses the return keyword to send back information to its calling space, which is the same as the C language syntax. For example: function Sample_long () { return; } $bar = Sample_long (); When Sample_long ()

In a programming language, a function or a method typically has a return value, but there is also a case where no value is returned, at which point the function simply handles some transactions, does not return, or does not have a definite return

When defining a function, the argument list in parentheses after the function name is the interface that the user uses to pass the data to the inside of the function when the function is called, and the return value of the function returns the

In-depth understanding of PHP kernel (6) function definition, passing parameters and return values, and in-depth understanding of the kernel. In-depth understanding of PHP kernel (6) function definition, passing parameters and return values, and

For a workaround to the PHP recursive function return value problem, and some important points to note when using the return statement in a PHP recursive function, correctly handle the return value of the PHP recursive function to make the code more

When looking at PHP extension development, you can see a question about the PHP function return value. When a function is defined, and this function has a return value, it does not use the return value in user use. The zend engine can implement