PHP String Function
PHP Math Function
PHP Array Sizeof
PHP Array In_array
PHP Array Print_r
PHP Array Sort
PHP Array Array_intersect
PHP Array Array_reverse
PHP Array Shuffle
PHP Array Pop
PHP Array Push
PHP Array Product
PHP File Mkdir
PHP File Rmdir
PHP File Move_uploaded_file
PHP File Unlink
PHP File Tempnam
PHP File Disk Free Space
PHP File Disk Total Space
PHP Math Function
Php Array Functions
PHP Array CountPHP Array Sizeof
PHP Array In_array
PHP Array Print_r
PHP Array Sort
PHP Array Array_intersect
PHP Array Array_reverse
PHP Array Shuffle
PHP Array Pop
PHP Array Push
PHP Array Product
Php File Functions
PHP File RenamePHP File Mkdir
PHP File Rmdir
PHP File Move_uploaded_file
PHP File Unlink
PHP File Tempnam
PHP File Disk Free Space
PHP File Disk Total Space
PHP isset() Function
The isset() function is used to check if string value contains valid characters.
Demo :
Is Not Set
Following code is used to isset() demo code If you need to copy and use to your web site.
<?php
$str = " Hello World ";
$result = isset($str);
echo $result;
?>
$str = " Hello World ";
$result = isset($str);
echo $result;
?>
The isset() function have in the many parameters that name some is mixed var,[mixed var],[...].
Free Download Script :
If you need isset() function demo code download from following link.
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