How to put string into array in PHP and split by newline

What is PHP?

PHP stands for Hypertext Preprocessor and is a popular server-side scripting language used for web development. It is designed to create dynamic and interactive web pages. PHP is embedded in HTML code and executed on the server, producing HTML output that is sent to the client browser. With its easy-to-learn syntax, PHP allows developers to build dynamic websites, process form data, interact with databases, and perform a variety of server-side tasks. It has a vast ecosystem of libraries and frameworks that enhance its functionality and enable developers to create powerful and scalable web applications. PHP is widely supported by hosting providers, making it a top choice for web development projects.

How to put string into array and split by newline in PHP

method 1

Use preg_split() function

The preg_split() function in PHP is used to split a string into an array of substrings based on a specified regular expression pattern. It allows you to split a string into smaller parts based on specific criteria. By leveraging the functionality of preg_split(), you can efficiently split strings based on flexible patterns, allowing you to process and manipulate text data in a structured manner in your PHP applications.

grammar

The syntax of the preg_split() function is as follows:

preg_split(pattern, string, limit = -1, flags = 0);

• pattern: Specifies the regular expression pattern used to split strings.

• string: Specify the input string that needs to be split.

• limit (optional): Specifies the maximum number of elements to be returned in the result array. If set to a positive value, only so many elements will be returned. If set to 0, all possible elements will be returned. If set to a negative value (default), no limit is imposed.

• flags (optional): Specify any additional flags to modify the behavior of the preg_split() function.

Example

<?php

// A php program to separate string
// using preg_split() function

// String which to be converted
$str = "Pradeep Menon</p><p>Arjit</p><p>Kavitha deshmukh</p><p>John Peter</p><p>Peterson";
// This function converts the string
$arr= preg_split ('/</p><p>/', $str);

// print the information of array
print_r($arr);
?>

Output

Array
(
[0] => Pradeep Menon
[1] => Arjit
[2] => Kavitha deshmukh
[3] => John Peter
[4] => Peterson
)

Code description

In this code, we use the preg_split() function to split the string into an array and use the newline character as the separator.

The input string $str contains a list of names separated by newlines. Then use the preg_split() function with the regular expression pattern /

/ to split the string every time a newline character occurs.

After executing the preg_split() function, the generated array $arr has each name as its element. Finally, the print_r() function is used to display the contents of the array.

In summary, this code snippet takes a string with names separated by newlines, applies preg_split() to split it into an array using newlines as separators, and then prints the resulting array with the separated names.

Method 2

Use the explode() function

The explode() function in PHP is used to split a string into an array of substrings based on the specified delimiter. It is a simpler alternative to the preg_split() function and is particularly useful when using simple delimiters such as single characters or fixed strings. The explode() function is typically used for scenarios such as parsing CSV files, extracting individual words from sentences, or breaking up strings based on specific delimiters. It provides a simple and efficient way to split a string into smaller components.

grammar

The syntax of the explode() function is as follows:

explode(delimiter, string, limit = PHP_INT_MAX);

• delimiter: Specifies the string used as the delimiter to split the input string.

• string: Specify the input string that needs to be split.

• limit (optional): Specifies the maximum number of elements to be returned in the result array. If set, the resulting array will contain at most a finite number of elements.

Example

The following is an example of the explode() function:

<?php

// PHP program to separate string
// using explode function

// String which to be converted
$str = "Pradeep Menon</p><p>Ajith Lakshman</p><p>John Peter</p><p>Peterson";

// Function to convert string to array
$arr = explode("</p><p>", $str);

// Print the information of array
print_r($arr);
?>

Output

Array
(
[0] => Pradeep Menon
[1] => Ajith Lakshman
[2] => John Peter
[3] => Peterson
)

Code description

The above PHP code snippet demonstrates how to use the Explode() function to split a string into an array, using the newline character (

) as the separator.

The input string $str contains a list of names separated by newlines. Then use the explode() function to split the string into an array of substrings using the newline character (

) as the delimiter. After executing the explode() function, the generated array $arr contains each name as its element. Finally, the print_r() function is used to display the contents of the array.

in conclusion

In summary, preg_split() and explode() are both PHP functions used to split a string into an array based on the specified delimiter. preg_split() provides the advantages of using regular expressions as delimiters, providing greater flexibility and advanced pattern matching capabilities. It is ideal for complex splitting requirements where the delimiters can vary or follow a specific pattern. On the other hand, explode() is simpler, faster, and suitable for simple splitting tasks using fixed delimiters such as characters or strings. This is a more efficient choice when dealing with simple and predictable delimiters.

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