- PHP stands for hypertext preprocessor or personal home page. Php is a server side scripting language, which can be embedded into an html page or used as a stand alone.
- Php supports many database like mysql, Informix, oracle, Sybase, postgresql, odbc etc..
- Php is an open source software (oss). Php is free to download and use language.
- Php file may contain text, html text, and script.
- Php file have a file extension .php, .php3, .phtml.
- Php runs on different platform like window, linux, unix, mac etc. php is compatible with almost all server used today like apache, IIS.
Ø Basic php syntax
A php scripting block always start with <?php and ends with ?>. a php scripting block can be placed anywhere in the document.
Syntax
<?php
Some code
?>
On server with shorthand support enabled you can start a scripting with <?php and ends with ?>, However for maximum compatibility we recommend that you use the standard form rather than the shorthand form.
A php file normally contain <html> tags just like an html file and some php scripting code.
Example
<html>
<body>
<?php
echo “Hello World”;
?>
</body>
</html>
OR
<?php
echo “Hello World”;
?>
- Each code line in php must end with a semicolon(;).
- There are two basic statement to output text with php are echo and print.
- In the example above we have used the echo statement to output the text “Hello World”.
Ø Comment in php
In php we use // single line to make a single line comment or /*…….*/ to make large comment block.
Ø PHP is Case Sensitive
PHP is case sensitive – therefore which your capitalization closely when you cerate or call variables, objects and functions. For example variable $A and $a both are different.
PHP is case sensitive – therefore which your capitalization closely when you cerate or call variables, objects and functions. For example variable $A and $a both are different.
Posted By : Hemangi Zala