golang implements php function

With the continuous development of Internet technology, programming languages ​​​​are also constantly updated and upgraded. Among them, golang, as an efficient, safe, and excellent concurrency programming language, is favored by programmers. As a widely used web development language, php plays an important role in many projects. So, how to implement some common functions in PHP in golang? Below we will briefly introduce how to implement some common PHP functions.

1. strlen()

In PHP, the strlen function is often used to calculate the length of a string. In golang, the length of a string can be calculated through the len() function. The code is as follows:

str := "hello world"
len := len(str)

2. explode()

In PHP, the explode function is often used to Strings are split according to specific delimiters. In golang, we can use the Split method in the strings package to separate strings. The code is as follows:

str := "hello,world,!"
arr := strings.Split(str, ",")
fmt.Println(arr) // [hello world !]

3. implode()

implode function is commonly used in PHP To concatenate the array elements into a string using the specified delimiter. In golang, we can use the Join method in the strings package to connect array elements. The code is as follows:

arr := []string{"hello", "world", "!"}
str := strings.Join(arr, ",")
fmt.Println(str) // hello,world,!

4. in_array()

In PHP, in_array The function is used to determine whether an element exists in the array. In golang, we can use a for loop to traverse the array. The code is as follows:

arr := []string{"hello", "world", "!"}
target := "hello"
for _, val := range arr {
    if val == target {
        fmt.Println(target + " is in the array")
    }
}

5. array_push()

In PHP, the array_push function is used to add an or Multiple elements. In golang, we can use the append function to add one or more elements to the array. The code is as follows:

arr := []string{"hello", "world"}
arr = append(arr, "!")
fmt.Println(arr) // [hello world !]

6. is_numeric()

In PHP, is_numeric function Used to determine whether a variable is a number or a string of numbers. In golang, we can use the ParseFloat function in the strconv package to determine whether a string is a number. The code is as follows:

str1 := "123"
_, err1 := strconv.ParseFloat(str1, 64)
if err1 == nil {
    fmt.Println(str1 + " is numeric")
}

str2 := "123a"
_, err2 := strconv.ParseFloat(str2, 64)
if err2 != nil {
    fmt.Println(str2 + " is not numeric")
}

7. array_key_exists()

In php , the array_key_exists function is used to determine whether the specified key exists in the array. In golang, we can use map to achieve similar functions. The code is as follows:

m := make(map[string]string)
m["hello"] = "world"
key := "hello"
if _, ok := m[key]; ok {
    fmt.Println(key + " exists in the map")
}

To sum up, although golang and php are two different programming languages, they are similar in realizing many functions. By learning and mastering these code implementations, we can have a more comprehensive understanding of the similarities and differences between the two programming languages, and can also become more proficient in using them for development.

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