Teach you how to use PHP operators to splice two strings together

String is an important data type in PHP. In daily web development, we often need to perform operations on strings, such as string splicing (connection). Today I will introduce to you how to splice two strings together in PHP. Let’s take a look!

This article uses code examples to introduce to you two methods of splicing strings in PHP: one is to use the string concatenation operator .; the other is to use the assignment operator .=.

Method 1: Use string concatenation operator .

String concatenation operator . can combine two or more More than three strings are concatenated into a new string.

There is an example below:

<?php
header("Content-type:text/html;charset=utf-8");
$str1="欢迎来到";
$str2="PHP中文网";
$str3=$str1.$str2;
echo "字符串1：".$str1;
echo "<br>字符串2：".$str2;
echo "<br>字符串1和字符串2拼接后：".$str3;
?>

Output result:

It can be seen that when we use When echo is output, sometimes you need some text prompts. In this case, you can use the string connector . to splice the text strings and variables enclosed in quotation marks together for output, for example "echo "After concatenating string 1 and string 2: ".$str3;".

When using echo to output a string, you can also use curly brackets {$str} to embed variables in the string, such as "Text{$str} Text "; If {} is not used, you can also use word segmentation characters to separate variables and text. Word segmentation characters are generally spaces, punctuation marks, etc.

<?php
header("Content-type:text/html;charset=utf-8");
$str1="欢迎来到";
$str2="PHP中文网";
$str3=$str1.$str2;
echo "字符串1：".$str1;
echo "<br>字符串2：$str2";
echo "<br>字符串1和字符串2拼接后: {$str3}";
?>

Output result:

Method 2: Use assignment operator .=

In PHP, you can use the format of "$string1 .= $string2" to splice strings. The .= operator appends the characters on the right to left.

Let’s take a look at the following example to understand the .= operator.

<?php
header("Content-type:text/html;charset=utf-8");
$str1="欢迎来到";
echo "字符串1：".$str1;

$str2="PHP中文网";
echo "<br>字符串2：".$str2;

$str1.=$str2;
echo "<br>字符串1和字符串2拼接后：".$str1;
?>

Output result:

Okay, that’s all. If you want to know anything else, you can click this. → →php video tutorial

Finally, I recommend reading a classic course "PHP String Processing (Jade Girl Heart Sutra Edition)", it's free~ come and learn !

The above is the detailed content of Teach you how to use PHP operators to splice two strings together. For more information, please follow other related articles on the PHP Chinese website!