Comparison operators in PHP

Comparison operators in PHP

By: Andi, Stig and Derick Printer Friendly Format

Comparison operators enable you to determine the relationship between two operands.

When both operands are strings, the comparison is performed lexicographically. The comparison results in a Boolean value. For the following comparison operators, automatic type conversions are performed, if necessary.

Operator	Name	Value
= =	Equal to	Checks for equality between two arguments performing type conversion when necessary: 1 = = "1" results in true 1 = = 1 results in true
!=	Not equal to	Inverse of = =.
>	Greater than	Checks if first operand is greater than second
<	Smaller than	Checks if first operand is smaller than second
>=	Greater than or equal to	Checks if first operand is greater or equal to second
<=	Smaller than or equal to	Checks if first operand is smaller or equal to second

For the following two operators, automatic type conversions are not performed and, therefore, both the types and the values are compared.

Operator	Name	Value
= = =	Identical to	Same as == but the types of the operands have to match. No automatic type conversions are performed: 1 = = = "1" results in false. 1 = = = 1 results in true.
!= =	Not identical to	The inverse of = = =.

Most Viewed Articles (in PHP )

A Basic Example using PHP in AWS (Amazon Web Services)

preg_split() and explode() in PHP

Reading .CSV file in PHP

HTML table output using Nested for loops in PHP

History and origin of PHP

Different versions of PHP - History and evolution of PHP

Encrypting and decrypting in PHP

Parent: child process exited with status 3221225477 -- Restarting

Using Text file as database in PHP

Generate random timestamp between two dates

Function to return number of digits of an integer in PHP

Convert a hex string into a 32-bit IEEE 754 float number in PHP

Exception in module wampmanager.exe at 000F15A0 in Windows 8

PHP file upload (Large Files)

Getting Started with PHP

Latest Articles (in PHP)

PHP code to import from CSV file to MySQL

PHP code to write to a CSV file from MySQL query

PHP code to write to a CSV file for Microsoft Applications

Convert XML to CSV in PHP

Password must include both numeric and alphabetic characters - Magento

PHP file upload (Large Files)

PHP file upload prompts authentication for anonymous users

PHP file upload with IIS on windows XP/2000 etc

Error: Length parameter must be greater than 0

Multiple File Upload in PHP using IFRAME

Resume or Pause File Uploads in PHP

Exception in module wampmanager.exe at 000F15A0 in Windows 8

Handling file locks in PHP

HTML table output using Nested for loops in PHP

Count occurrences of a character in a String in PHP

Comment on this tutorial

categories

Subscribe to Tutorials

Related Tutorials

PHP code to import from CSV file to MySQL

PHP code to write to a CSV file from MySQL query

PHP code to write to a CSV file for Microsoft Applications

Convert XML to CSV in PHP

Password must include both numeric and alphabetic characters - Magento

PHP file upload (Large Files)

PHP file upload prompts authentication for anonymous users

PHP file upload with IIS on windows XP/2000 etc

Error: Length parameter must be greater than 0

Multiple File Upload in PHP using IFRAME

Resume or Pause File Uploads in PHP

Exception in module wampmanager.exe at 000F15A0 in Windows 8

Handling file locks in PHP

HTML table output using Nested for loops in PHP

Count occurrences of a character in a String in PHP

Archived Comments