Sometimes we need to decode HTML entities from any specific strings in PHP. Basically it’s more used for retrieve HTML entities from a MySQL cell.? To Convert all HTML entities to their applicable characters there is one function available that is called html_entity_decode(). html_entity_decode($YourStrings) Example: <?php $orig?=?"I'll?"love"?the?<b>girl</b> very much"; $a?=?htmlentities($orig); $b?=?html_entity_decode($a); echo?$a;?//?I'll?&quot;love&quot;?the?&lt;b&gt;girl&lt;/b&gt; very much echo?$b;?//?I'll?"love"?the?<b>girl</b> very much?>

When you will work with your Blog or something in PHP, MySQL. Then your user may enter apostrophe s (‘s) into the post writing area. Then it will cause a problem for executing your MySQL Query. To execute your query for MySQL you can use mysql_real_escape_string($yourStrings). Example: <form method=”post” action=””> <input type=”text” name=”user_name” value=”wallpaperama’s”> <br /> <br /> <input type=”submit” name=”Submit” value=”Submit”> </form> <?php $user_name = mysql_real_escape_string ($_POST[‘user_name’]); ?> and write your mysql query. It will be executed without any …

Sometimes when you make many functions in your PHP scripts. Then you need to check the real existence of the function you need. That’s why to check a function’s existence, you can write a little piece of code like the following: <?php if(function_exists(NameOfTheFunction)) { echo "Function Exist"; } else { echo "Function doesn't exist"; } ?> NameOfTheFunction means your function's name. If your function is LoginCheck(). Then you need to write only LoginCheck. Just omitt the () symbol. If it …

To write values or text in a .txt file you can follow the following process in PHP. <?php function test_function () { return ?"Hello!"; } $function_contents = test_function (); $file_name = "test_file.txt"; $file_handle = fopen($file_name, 'w'); fwrite($file_handle, $function_contents); fclose($file_handle); ?> It will make a text file named test_file.txt and in that file this PHP code snippet will write ‘Hello’. Thanks