What is the concatenation operator for strings in php

#There are two string operators in PHP. The first is the concatenation operator ("."), which returns the concatenated string of its left and right arguments. The second is the concatenation assignment operator (".="), which appends the right argument to the left argument.

Below we will introduce to you how to connect strings in PHP through simple code examples.

1. Connection operator ".="

The code is as follows:

<?php
$a = "Hello";
$a .= " PHP中文网！";
echo $a;

The connection result is as follows:

Note: ".=" can not only splice strings, but also append floating point and integer type data.

If you connect integers & decimals:

<?php
$a = "Hello";
$a .= 1;//或1.2
echo $a;

The result is as follows:

##2. Connection operator "."

<?php
$a = "Hello";
$b = " PHP中文网！";
echo $a.$b;

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