Use of join() Function in PHP

The join() function is built-in function in PHP and is used to join an array of elements which are separated by a string. Parameter: The join() function accepts two parameter out of which one is optional and one is mandatory. $array : The array whose value is to be joined to form a string.

1. What is the function of join?
2. What is join in PHP?
3. What is the function to join a list in PHP?
4. What are the uses of explode () and implode () functions?
5. What is join () in Python?
6. What is string join in Java?
7. How can I join HTML and PHP?
8. How can I join two tables in PHP?
9. Can we join 3 tables in mysql?
10. Is PHP an array?
11. Which PHP function is used to find files?
12. What are PHP variables?

What is the function of join?

join() The join() method creates and returns a new string by concatenating all of the elements in an array (or an array-like object), separated by commas or a specified separator string. If the array has only one item, then that item will be returned without using the separator.

What is join in PHP?

A join lets you combine columns from two or more tables into a single result or say a SQL statement that retrieves data from two tables is called a join.

What is the function to join a list in PHP?

The join() function returns a string from the elements of an array.

What are the uses of explode () and implode () functions?

The explode() function breaks a string into an array, but the implode function returns a string from the elements of an array.

What is join () in Python?

Python String join()

The join() method provides a flexible way to create strings from iterable objects. It joins each element of an iterable (such as list, string, and tuple) by a string separator (the string on which the join() method is called) and returns the concatenated string.

What is string join in Java?

The java string join() method returns a string joined with given delimiter. In string join method, delimiter is copied for each elements. In case of null element, "null" is added. The join() method is included in java string since JDK 1.8. There are two types of join() methods in java string.

How can I join HTML and PHP?

In some circumstances, you may want to include form-parsing code on the same page as a hard-coded HTML form. Such a combination can be useful if you need to present the same form to the user more than once.

How can I join two tables in PHP?

In this video you can find how to merge two table data using inner join keyword and load that data on web page using php and mysql. If you want to load data from multiple table then at that time you can use inner join keyword and merge two table or more table with common column between two or more table.

Can we join 3 tables in mysql?

If you need data from multiple tables in one SELECT query you need to use either subquery or JOIN. Most of the times we only join two tables like Employee and Department but sometimes you may require joining more than two tables and a popular case is joining three tables in SQL.

Is PHP an array?

The is_array() function checks whether a variable is an array or not. This function returns true (1) if the variable is an array, otherwise it returns false/nothing.

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.

What are PHP variables?

Variables are used to store data, like string of text, numbers, etc. ... PHP automatically converts the variable to the correct data type, depending on its value. After declaring a variable it can be reused throughout the code. The assignment operator ( = ) used to assign value to a variable.