Converting to HTML, from form POST, etc
See here
Converting String To Variable
You don’t need to, but if you want to force to a particular type you can:
$DeviceId = intval($DeviceId);Converting Variables To String
No need, PHP automatically converts a varaible to the type needed for the context being used
$number = 12345 & 67890; //$number is used as a numeric varaible
echo substr ($number, 3, 1); //$number is used as a stringConvert copy and pasted text
//Convert copy and pasted email addresses (seperate email addreses by comma or newline or both)
$emails = preg_split("/[\r\n,]+/", $email_addresses, -1, PREG_SPLIT_NO_EMPTY);Remove special characters from a string
//Remove all special characters
$MyString = str_replace(' ', '-', MyString); //Replaces all spaces with hyphens.
$MyString = preg_replace('/[^A-Za-z0-9\-]/', '', $MyString); //Remove all special characters
//This string: 'a|"bc!@£de^&$f g'
//Will become: 'abcdef-g'
USEFUL?
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