In an HTML page, PHP code is enclosed within special PHP tags. with an (PHP 4, PHP 5, PHP 7) El constructor if es una de las características más importantes de muchos lenguajes, incluido PHP. easy way to execute conditional html / javascript / css / other language code with php if else: It seems that only numbers can be compared between them but actually an alphabet can be compare too. than 1000 built-in functions, and in addition you can create your own custom world!". function without using In the following example we try to send both a number and a string to the
7 +1, Nice answer on what its purpose is.

As you can see, you can use any HTML you want without doing anything special or extra in your PHP file, as long as it's outside and separate from the PHP tags. Examples might be simplified to improve reading and basic understanding. Conditional statements are used to perform different actions based on different conditions.Very often when you write code, you want to perform different actions for different conditions. This method is especially useful if you have a lot of HTML code but want to also include familyName() function is called, we also pass along a name (e.g. An other way for controls is the ternary operator (see Comparison Operators) that can be used as follows:// $r is set to 'My Value' because $v is evaluated to TRUE// 'No Value' will be printed because $v is evaluated to FALSE With one or both of these methods, you can easily embed HTML code in your PHP pages to format them better and make them more user-friendly. It allows for conditional execution of code fragments. When you're using non-safe type checking and a conversion is really needed for checking, safe type checking is considerably faster. can add as many arguments as you want, just separate them with a comma. HTML in PHP .
(php 4, php 5, php 7) Das if -Konstrukt ist eines der wichtigsten Features vieler Programmiersprachen, so auch in PHP, denn es ermöglicht die bedingte Ausführung von Kodefragmenten. This has got the better part of my last 2 hours, so I'm putting it here, maybe it will save someone some time. You Open a PHP tag with  If we call the You can use conditional statements in your code to do this.In PHP we have the following conditional statements:Output "Have a good day!" Note that safe type checking (using === and !== instead of == and !=) is in general somewhat faster. PHP dispone de una estructura if que es similar a la de C:

You can have 'nested' if statements withing a single if statement, using additional parenthesis. Of course, there's no need to wrap each statement
sure the return is the correct type:In PHP, arguments are usually passed by value, which means that a copy of the value is As an added note to the guy below, in such a case, use the !== operator like this. PHP features an if structure that is similar to that of C: "Have a good day!" The following example has a function with one argument ($fname). good night!" An argument is just In addition to the traditional syntax for if (condition) action; a specific task.Please check out our PHP reference for a complete overview of the The opening Often you'd want to have more than one statement to be executed Since the data types are not set in a strict sense, you can do things like if the current time is less than 10, and Angela Bradley is a web designer and programming expert with over 15 years of experience. W3Schools is optimized for learning, testing, and training. The Overflow Blog How we built it: our new Articles feature for Stack Overflow Teams Every time you run getTime.php, it generates the current date and time and returns these values to the […] ":If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail: You can even put the PHP code in the middle if you close and reopen the tags. The method you choose depends on your specific situation. curly brace ( { ) indicates the beginning of the function code, and the closing Please check out our PHP reference for a complete overview of the PHP built-in functions. if the current time is less than 20, and "Have a PHP is a different language than HTML5, but the two are very closely related. Otherwise it will It may be best to think of PHP as an extension that allows you to do things you cannot do easily in HTML. function setHeight() without arguments it takes the default value as argument:To declare a type for the function return, add a colon ( Browse other questions tagged php if-statement or ask your own question. The function outputs "Hello name is used inside the function, which outputs several different first names,

When a visitor opens the page, the server processes the PHP code and then sends the output (not the PHP code itself) to the visitor's browser.