EDUCBA

EDUCBA

MENUMENU
  • Free Tutorials
  • Free Courses
  • Certification Courses
  • 600+ Courses All in One Bundle
  • Login

PHP preg_split()

Home » Software Development » Software Development Tutorials » PHP Tutorial » PHP preg_split()

PHP preg_split()

Introduction to PHP preg_split()

The following article provides an outline on PHP preg_split(). preg_split() is a predefined inbuilt function which helps in converting the prescribed string into an array. This predefined function will split the given string into smaller/sub strings which is having some length as specified by the system user. This function also come in handy like limiting the small string or the sub strings up to some limit which returns through an array. It is analogous to explode() but the only difference is regular expression used for delimiter instead or explode().

Syntax with Parameters

Following is a syntax with parameters and explanation:

Start Your Free Software Development Course

Web development, programming languages, Software testing & others

Syntax:

array preg_split( $pattern, $subject, $limit, $flag )

Parameters:

The preg_split() function usually accepts four parameters just as mentioned in the above syntax.

1. Pattern: The type of value used in the preg_split() function is string type in which the pattern will search as a string if not it will separate the elements.

2. Subject: The $subject parameter is the variable which usually helps in storing the input string.

3. Limit: The limit parameter will indicate the limit of the preg_split() function. If the limit of the function is defined then small string or the sub string will be returned only up to the limit. If the limit is either “0” or “-1”, the limit parameter will be assigned as “no limit” then it is used by the “$strflag” (flag).

4. Flag: The flag/flags parameter helps to signalize and flag’s variable type/types is used to indicate the two state TRUE or two state FALSE in order to control the program.

Popular Course in this category
PHP Training (5 Courses, 3 Project)5 Online Courses | 3 Hands-on Project | 28+ Hours | Verifiable Certificate of Completion | Lifetime Access
4.5 (5,731 ratings)
Course Price

View Course

Related Courses
Java Servlet Training (6 Courses, 12 Projects)All in One Software Development Bundle (600+ Courses, 50+ projects)

It has different combinations of flags:

  • PREG_SPLIT_NO_EMPTY: If the flag parameter/variable is set to the “PREG_SPLIT_NO_EMPTY”, preg_split() function will return only non-empty pieces.
  • PREG_SPLIT_DELIM_CAPTURE: If the flag parameter is set to the “PREG_SPLIT_DELIM_CAPTURE”, delimiter pattern of the parenthesized expression will be returned and captured.
  • PREG_SPLIT_OFFSET_CAPTURE: If the flag parameter is set to the “PREG_SPLIT_OFFSET_CAPTURE”, for each and every occurring match string offset is going to be returned and also helps in changing the return value of the array in which the matched string offset will be set to the “0” value and the input string offset value is set to the value “1”.

How preg_split() Function works in PHP?

  • The preg_split() function will help in returning the array when the split boundaries are matched.
  • The preg_split() function will return an array element only when the original array or the string’s limit exceeds because the condition is TRUE otherwise it will be FALSE.
  • Preg_split() function works by splitting some terms/text/special characters from the original string text provided and then stores in a specific mentioned variables name’s index values which is nothing but in an array.
  • One can call all those values which are split using the index values of the array like array[0] etc..

Examples of PHP preg_split()

Given below are the examples:

Example #1

This is the example of illustrating the preg_split() function of PHP programming language. In the below syntax, a variable “$inputstrVal1” is created and assigned a string “PavanSake” to it. Then a variable “$result1” is created by assigning the preg_split() function to it with the basic four parameters as mentioned in the syntax. Here “//” is the pattern parameter, input string value given is the subject parameter which is to be splitted, “-1” is the limit value which means it has no limit and splitting will be done up to the end of the string and the normal FLAG parameter used as usually based on our requirement. Then the “$result1” variable value will be printed with the help of “print_r()” function.

Syntax:

<?php
$inputstrVal1  = 'PavanSake';
$result1 = preg_split('//', $inputstrVal1 , -1, PREG_SPLIT_NO_EMPTY);
print_r($result1);
?>

Output:

php preg_split() 1

Example #2

This is also one of the example of preg_split() function of PHP Programming Language. Here the phrase will be split by the number of commas. Usually the space characters are “\r”, “\t”, “\n”, “\f”. In the below example, a variable “$result11” is created by assigning the preg_split() function. It contains only 2 parameters by giving the string input “Pavan Kumar Sake” directly. Then the result of the “$result11” will be printed with the help of the “print_r()” function.

Syntax:

<?php
$result11 = preg_split("/[\s,]+/", "Pavan Kumar Sake");
print_r($result11);
?>

Output:

php preg_split() 2

Example #3

This is the example of preg_split() function illustration of the PHP language. In the below example, at first a variable is created by assigning a string value which is actually a hyper link to provide the string input. Then again a pattern string value is given with some text and special characters. Then a result variable is created by assigning preg_split() function with 4 specific parameter variables. Then a print_r() function is used to show the array elements from the string. In the output, you will get the text in the array elements and it’s index by filtering the mentioned pattern string elements from the input string value.

Syntax:

<?php
$inputstrVal1 = "http://profitloops.in/pavan/kumar/sake.php";
$patternstrVal1= "/[http:\/\/|\.]/";
$result12 = preg_split($patternstrVal1, $inputstrVal1, 0,
PREG_SPLIT_NO_EMPTY | PREG_SPLIT_OFFSET_CAPTURE);
print_r($result12 );
?>

Output:

variable is created by assigning a string

Example #4

This is the example of showing how to split the id address using the preg_split() function. At first, echo statement is used inside the PHP tags just to print some text when the program executed. Then a variable “$ip1” is created by assigning the string value which contains the IP address. Then one more variable is created to assign the preg_split() function. This will make the string to become array elements after splitting. Then by using the print statement we are going to print the array elements using the index values.

Syntax:

<?php
echo "Application :: This is the program of splitting the ip address";
$ip1 = "111.422.732.001";
$iparr1 = preg_split ("/\./", $ip1);
print "$iparr1[0] <br />";
print "$iparr1[1] <br />" ;
print "$iparr1[2] <br />"  ;
print "$iparr1[3] <br />"  ;
?>

Output:

php preg_split() 4

Conclusion

Here we saw introduction on PHP preg_split() function and it’s syntax with parameters, how the preg_split() function works in PHP along with the various examples to implement preg_split() function.

Recommended Articles

This is a guide to PHP preg_split(). Here we discuss the introduction, how preg_split() function works in PHP with respective examples. You may also have a look at the following articles to learn more –

  1. PHP Serialize
  2. PHP Tag in HTML
  3. PHP Date Time Functions
  4. PHP Pagination

All in One Software Development Bundle (600+ Courses, 50+ projects)

600+ Online Courses

50+ projects

3000+ Hours

Verifiable Certificates

Lifetime Access

Learn More

0 Shares
Share
Tweet
Share
Primary Sidebar
PHP Tutorial
  • Functions
    • Functions in PHP
    • PHP Math Functions
    • PHP Recursive Function
    • PHP String Functions
    • Hashing Function in PHP
    • Date Function in PHP
    • PHP Anonymous Function
    • Calendar in PHP
    • PHP Call Function
    • PHP Pass by Reference
    • PHP ucfirst()
    • PHP ucwords()
    • trim() in PHP
    • isset() Function in PHP
    • PHP replace
    • PHP fpm
    • PHP strpos
    • preg_match in PHP
    • PHP preg_replace()
    • PHP ob_start()
    • PHP Reflection
    • PHP Split String
    • PHP URL
    • PHP preg_match_all
    • PHP strtoupper()
    • PHP preg_split()
    • PHP substr_replace()
    • PHP setlocale()
    • PHP substr_count()
    • PHP Serialize
    • PHP strlen()
    • PHP async
    • PHP Date Time Functions
    • PHP timezone
    • PHP Data Object
    • print_r() in PHP
    • PHP header()
    • PHP strip_tags()
    • PHP chop()
    • PHP MD5()
    • PHP unset()
    • PHP crypt()
    • PHP wordwrap()
    • PHP is_null()
    • PHP strtok()
    • PHP bin2hex()
    • PHP parse_str()
    • PHP levenshtein()
    • PHP addslashes()
    • PHP strtotime
    • PHP sha1()
    • PHP explode()
    • PHP sscanf()
    • PHP require_once
    • PHP Zip Files
    • PHP $_SERVER
    • PHP $_POST
    • PHP Include and Require
    • PHP POST Method
  • PHP Basic
    • Introduction To PHP
    • What is PHP
    • PHP Keywords
    • Advantages of PHP
    • Career In PHP
    • Comments in PHP
    • PHP Commands
    • PHP Frameworks
    • PHP Compiler
    • Variables in PHP
    • PHP Superglobal Variables
    • PHP Versions
    • Object in PHP
    • What is Drupal
    • Top PHP Frameworks
    • WebStorm IDE
    • What is phpMyAdmin?
    • PhpStorm
    • Install phpMyAdmin
    • Phalcon Model
  • Data Types
    • PHP Data Types
    • PHP Integer
    • PHP Booleans
  • Operators
    • PHP Operators
    • Arithmetic Operators in PHP
    • Comparison Operators in PHP
    • Logical Operators in PHP
    • Bitwise Operators in PHP
    • Ternary Operator in PHP
    • PHP String Operators
  • Control Statements
    • Control Statement in PHP
    • PHP if Statement
    • if else Statement in PHP
    • elseif in PHP
    • PHP Switch Statement
    • Continue in PHP
    • Break in PHP
  • Loops
    • PHP Loops
    • For Loop in PHP
    • PHP Do While Loop
    • PHP While Loop
    • While Loop in PHP
    • Foreach Loop in PHP
  • Constructor
    • Constructor in PHP
    • Destructor in PHP
  • State Management
    • Cookie in PHP
    • Sessions in PHP
  • Array
    • What is PHP Array
    • Arrays in PHP
    • 2D Arrays in PHP
    • Associative Array in PHP 
    • Multidimensional Array in PHP
    • Indexed Array in PHP
    • PHP Array Functions
    • PHP unset Array
    • PHP Append Array
    • PHP Array Search
    • PHP Split Array
    • PHP array_push()
    • PHP array_pop()
  • Advanced
    • Overloading in PHP
    • Overriding in PHP
    • Method Overloading in PHP
    • Inheritance in PHP
    • Multiple Inheritance in PHP
    • PHP Interface
    • Encapsulation in PHP
    • PHP Constants
    • PHP Magic Constants
    • PHP Regular Expressions
    • PHP GET Method
    • PHP Annotations
    • PHP Encryption
    • PHP file Functions
    • PHP readfile
    • PHP?Write File
    • PHP Append File
    • PHP Type Hinting
    • PHP Filters
    • PHP Float
    • PHP Form
    • PHP Form Validation
    • Sorting in PHP
    • PHP usort()
    • PHP Stack Trace
    • PHP Stack Overflow
    • PHP Pagination
    • PHP implode
    • Polymorphism in PHP
    • Abstract Class in PHP
    • PHP Final Class
    • PHP Custom Exception
    • error_reporting() in PHP
    • PHP Log Errors
    • Access Modifiers in PHP
    • PHP Change Date Format
    • Static Method in PHP
    • PHP File Handling
    • PHP Output Buffering
    • Get IP Address in PHP
    • Upload a File in PHP
    • String in PHP
    • Public Function in PHP
    • Private in PHP
    • Protected in PHP
    • basename in PHP
    • Validation in PHP
    • PHP mail()
    • PHP Email Form
    • PHP Directory
    • PHP Create Session
    • PHP include_once
    • PHP json_decode
    • PHP XMLWriter
    • PHP XML Reader
    • PHP XML Parser
    • PHP XML into Array
    • Phalcon Framework
  • Programs
    • Patterns in PHP
    • Star Patterns in PHP
    • Swapping in PHP
    • Fibonacci Series PHP
    • Factorial in PHP
    • Reverse String in PHP
    • Square Root in PHP
    • Random Number Generator in PHP
    • Palindrome in PHP
    • Prime Numbers in PHP
    • Armstrong Number in PHP
    • Socket Programming in PHP
    • Login Page in PHP
    • PHP Login Template
    • PHP Object to String
  • Database
    • PHP Database Connection
    • How to Connect Database to PHP
  • Interview Questions
    • PHP Interview Questions
    • PHP OOP Interview Questions
    • CakePHP Interview Questions
    • Core PHP Interview Questions

Related Courses

PHP Training Course

Java Servlet Training

Software Development Course Training

Footer
About Us
  • Blog
  • Who is EDUCBA?
  • Sign Up
  • Corporate Training
  • Certificate from Top Institutions
  • Contact Us
  • Verifiable Certificate
  • Reviews
  • Terms and Conditions
  • Privacy Policy
  •  
Apps
  • iPhone & iPad
  • Android
Resources
  • Free Courses
  • Java Tutorials
  • Python Tutorials
  • All Tutorials
Certification Courses
  • All Courses
  • Software Development Course - All in One Bundle
  • Become a Python Developer
  • Java Course
  • Become a Selenium Automation Tester
  • Become an IoT Developer
  • ASP.NET Course
  • VB.NET Course
  • PHP Course

© 2020 - EDUCBA. ALL RIGHTS RESERVED. THE CERTIFICATION NAMES ARE THE TRADEMARKS OF THEIR RESPECTIVE OWNERS.

EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you
Book Your One Instructor : One Learner Free Class

Let’s Get Started

This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy

EDUCBA

*Please provide your correct email id. Login details for this Free course will be emailed to you
EDUCBA Login

Forgot Password?

EDUCBA
Free Software Development Course

Web development, programming languages, Software testing & others

*Please provide your correct email id. Login details for this Free course will be emailed to you

Special Offer - PHP Training Course Learn More