![]() While it's understandable that the PHP developers don't consider this a bug, or don't consider it a bug worth their time, jsimlo was right to point out that mixing alternative if syntaxes might lead to unexpected results. Instead of concluding that the else statement was intended to match the if($b) statement (and erroring out), the parser could match the else statement to the if($a) statement, which shares its syntax. In other words, one would expect that this would work: The syntax of the conditional operator: if (condition) operator Condition - a logical expression that can be true (TRUE) or false (FALSE). If else are the basic conditional statements that are normally used to perform different types of actions based on some of the different conditions. The following is illegal (as it should be):īut since the two alternative if syntaxes are not interchangeable, it's reasonable to expect that the parser wouldn't try matching else statements using one style to if statement using the alternative style. Operator if- is one of the most important operators in PHP. The parser doesn't handle mixing alternative if syntaxes as reasonably as possible. Not separate else if into two words, or PHP will ![]() ![]() Will only be considered exactly the same when using curly bracketsĪs in the above example. Preceding if expression and any preceding The elseif statement is only executed if the Is slightly different (if you're familiar with C, this is the sameīehavior) but the bottom line is that both would result in exactly To the one of 'elseif' (in a single word). That means if any expression is true in this case the code under that condition will be executer if not then will be executed. If we do something we will get something if not if we will get nothing. Write 'else if' (in two words) and the behavior would be identical How Does if Statement Work in PHP The working of this if and else is just a basic real-life conditional-based stuff. There may be several elseifs within the sameĮlseif expression (if any) that evaluates to It won’t show any offer if the user belongs to any other age group.Getting Started Introduction A simple tutorial Language Reference Basic syntax Types Variables Constants Expressions Operators Control Structures Functions Classes and Objects Namespaces Enumerations Errors Exceptions Fibers Generators Attributes References Explained Predefined Variables Predefined Exceptions Predefined Interfaces and Classes Context options and parameters Supported Protocols and Wrappers Security Introduction General considerations Installed as CGI binary Installed as an Apache module Session Security Filesystem Security Database Security Error Reporting User Submitted Data Hiding PHP Keeping Current Features HTTP authentication with PHP Cookies Sessions Dealing with XForms Handling file uploads Using remote files Connection handling Persistent Database Connections Command line usage Garbage Collection DTrace Dynamic Tracing Function Reference Affecting PHP's Behaviour Audio Formats Manipulation Authentication Services Command Line Specific Extensions Compression and Archive Extensions Cryptography Extensions Database Extensions Date and Time Related Extensions File System Related Extensions Human Language and Character Encoding Support Image Processing and Generation Mail Related Extensions Mathematical Extensions Non-Text MIME Output Process Control Extensions Other Basic Extensions Other Services Search Engine Extensions Server Specific Extensions Session Extensions Text Processing Variable and Type Related Extensions Web Services Windows Only Extensions XML Manipulation GUI Extensions Keyboard Shortcuts ? This help j Next menu item k Previous menu item g p Previous man page g n Next man page G Scroll to bottom g g Scroll to top g h Goto homepage g s Goto search Following is a single if condition that would show some special offers if the user is a teenage. The elseif statement is only executed if the preceding if expression and any preceding elseif expressions evaluated to false, and the current elseif expression. Think that you are writing a PHP program for a store and you have some offers based on the age. ![]() These build up the dynamic behavior of PHP. ![]() If Else and Switch Case are control structures that let you execute code segments based on given conditions. ![]()
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