How to learn PHP implode ()

Implode function Understanding 1

The implode () function combines array elements into a single string.

1. How the array elements are understood;

2. Whether the array element is the object of the action;

3. Whether the purpose of the function is to integrate into a string;

Implode function Understanding 2

Grammar

Implode (Separator,array)

1.implode parameter a separator whether to add content to each key value of the array;

2.implode parameter Two array is a function of an array of objects;

Parameters

Describe

Separator optional. Specify what is placed between array elements. The default is "" (empty string).

Array required. The array to combine as a string.

Description

Although the separator parameter is optional. However, for backward compatibility, it is recommended that you use two parameters.

1.separator parameter is optional;

2.implode parameter two arra is required;

Tips and comments

Note: Implode () can receive two parameter orders. But for historical reasons, explode () is no good. The separator parameter must be guaranteed before the string parameter.

Implode function Understanding 3

<?php

$arr = Array (' H ', ' I ', ' J ', ' k! ');

echo implode (' m ', $arr);

?>

The output result is: Hm Im Jm K!

<?php

$arr = Array (' H ', ' I ', ' J ', ' k! ');

Echo Implode (", $arr);

?>

The output is: H I J K!