How to use PHP array to output names

PHP is a widely used programming language, especially in the field of web development. In scenarios where you often need to output a set of data, PHP arrays can be used to easily store, traverse, and output data. This article will introduce how to use PHP array to output names.

1. Create an array

In PHP, you can simply create an array using the following method:

$nameList = array("张三", "李四", "王五", "赵六");

Using the above code, we created an array named $nameList , and store the four name strings as array elements in sequence.

2. Traverse the array and output

After constructing the array, we can use for, foreach, while, etc. to traverse the array and output the elements.

Use a for loop to traverse the array:

for($i = 0; $i < count($nameList); $i++) {
    echo $nameList[$i] . "<br>";
}

The above code uses a for loop to traverse the elements in the array, and output the name to the web page through the echo statement.

Use a foreach loop to traverse the array:

foreach($nameList as $name) {
    echo $name . "<br>";
}

The above code uses a foreach loop to output the name elements in the array.

3. Multi-dimensional array

In PHP, arrays can also be nested to form multi-dimensional arrays. Multidimensional array refers to the elements in the array and can also be an array type.

For example, we can create a multidimensional array containing the names of students in different classes:

$classList = array(
    "Class1" => array("张三", "李四", "王五"),
    "Class2" => array("赵六", "钱七", "孙八")
);

The above code creates a multidimensional array named $classList, which has two classes, each Multiple student names are stored in each class.

Use a foreach loop to output names in a nested multidimensional array:

foreach($classList as $className => $nameArray) {
    echo $className . "班级的学生有：<br>";
    foreach($nameArray as $name) {
        echo $name . "<br>";
    }
    echo "<br>";
}

The above code will output the names in each class in $classList to the web page.

Summary

The above is the method of using PHP array to output names. By creating arrays, traversing arrays and using multi-dimensional arrays, data processing and output can be easily realized. Mastering the above knowledge is an essential skill for web development engineers.

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