How to wrap two-dimensional array in php

In PHP, two-dimensional array is a very common data structure. When processing a large amount of data, we often need to output the data in a two-dimensional array in a certain format, including line breaks. How to implement line wrapping in a two-dimensional array? This article will introduce it to you in detail.

1. Use HTML tags to achieve line breaks

In PHP, we can use HTML tags to achieve line breaks. The specific method is to add
in the HTML tag at the end of the line when outputting each line in the array.

The sample code is as follows:

<?php
$data = array(
    array("name"=>"张三", "age"=>26, "gender"=>"男"),
    array("name"=>"李四", "age"=>22, "gender"=>"女"),
    array("name"=>"王五", "age"=>23, "gender"=>"男")
);

foreach($data as $value){
    echo "姓名：".$value['name']."，年龄：".$value['age']."，性别：".$value['gender']."<br>";
}
?>

The above code traverses a two-dimensional array $data and adds the
tag in HTML at the end of each member's information. By joining in this way, we achieve the effect of line break, and the output result is as follows:

姓名：张三，年龄：26，性别：男
姓名：李四，年龄：22，性别：女
姓名：王五，年龄：23，性别：男

2. Use string concatenation to achieve line break

In PHP, we can also use strings The splicing method achieves the line wrapping effect of the array. The specific method is to add a specific string at the end of each line of data, and finally use "\n" in PHP to represent the newline character.

The sample code is as follows:

<?php
$data = array(
    array("name"=>"张三", "age"=>26, "gender"=>"男"),
    array("name"=>"李四", "age"=>22, "gender"=>"女"),
    array("name"=>"王五", "age"=>23, "gender"=>"男")
);

foreach($data as $value){
    echo "姓名：".$value['name']."，年龄：".$value['age']."，性别：".$value['gender']."\n";
}
?>

The above code traverses each member in the array $data, splices each row of data into a string, and adds a newline character at the end of the string. This is used to achieve the effect of line wrapping. The output result is as follows:

姓名：张三，年龄：26，性别：男
姓名：李四，年龄：22，性别：女
姓名：王五，年龄：23，性别：男

3. Using CSS styles to achieve line wrapping

There is also a method using CSS styles to implement line wrapping of two-dimensional arrays Effect. The specific method is to set the class style of each member in the CSS style sheet and add the newline style attribute.

The sample code is as follows:

<?php
$data = array(
    array("name"=>"张三", "age"=>26, "gender"=>"男"),
    array("name"=>"李四", "age"=>22, "gender"=>"女"),
    array("name"=>"王五", "age"=>23, "gender"=>"男")
);
?>

<style>
    .item{
        display: block;
        margin-bottom: 10px;
    }
</style>

<?php
foreach($data as $value){
    echo "<div class=&#39;item&#39;>姓名：".$value['name']."，年龄：".$value['age']."，性别：".$value['gender']."</div>";
}
?>

In the above code, we set the .item style attribute in the CSS style sheet. The "display: block" attribute allows each member's div element to occupy its own line, and the "margin-bottom: 10px" attribute is used to set the spacing between different lines. Finally, when traversing the two-dimensional array and outputting each member, specify the div element where the member is located as the .item class. In this way, we achieve the line wrapping effect of the two-dimensional array, and the output result is as follows:

姓名：张三，年龄：26，性别：男

姓名：李四，年龄：22，性别：女

姓名：王五，年龄：23，性别：男

Summary:

This article introduces three methods of PHP to achieve the line wrapping effect of the two-dimensional array, including Use HTML tags, string concatenation and CSS styles. Different methods are suitable for different actual situations, and readers can choose the appropriate method according to specific needs.

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