How to convert array to string with commas in php

In php, you can use the implode() function to convert the array into a string with commas, the syntax is "implode(",",$arr)"; this function can convert the array into a string, when the When the first parameter of the function is set to ",", you can use commas as the connector to connect each element of the array together to form a string.

The operating environment of this tutorial: windows7 system, PHP7.1 version, DELL G3 computer

#php, you can use implode( ) function converts an array to a string with commas.

implode() function can convert a one-dimensional array into a string. Its syntax format is as follows:

implode([$glue,]$array)

Among them, $glue is used to set a string, indicating the use of $ Glue connects each element of the array together. By default, $glue is an empty string; $array is the array that needs to be converted.

You only need to set the $glue parameter to "," to use commas as the connector to connect each element of the array together to form a string.

Example:

<?php
$arr = array(1,2,3,4,5,6,7,8,9);
$str = implode(",",$arr);
echo $str;
var_dump($str);
?>

Explanation: The $glue parameter of the implode() function is optional and can be omitted; then the default connector is ""（empty string）

<?php
$arr = array(1,2,3,4,5,6,7,8,9);
$str = implode(" ",$arr);
echo $str;
var_dump($str);
?>

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