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The following page describes some important functions used by dolibarr.

GETPOST

GETPOST() : function to retrieve the content of GET or POST variables in a more secure way. The PHP methods $_GET and $_POST should not be used.

Possible use :

Example in php:

$myField= $_POST["myField"];

becomes if the element passed in parameter is a number :

$myField= GETPOST("myField", 'int');

Possible parameters of the second argument :

Parameters
'none'	for no parameter type check
'int'	check that it's a numeric (integer or decimal). Warning, for an amount or a rate, you must use alpha to accept non decimal chars or thousand separators used by some countries. The data must be then converted with price2num(GETPOST('key', 'alpha'))
'intcomma'	checks that it is an integer with commas ('1,2,3,4...')
'alpha'	verifies that it is text and signs
'aZ'	verifies that it is a-z only
'aZ09'	verifies that it is non-special characters and numbers
'array'	verifies that it is an array
'san_alpha'	purged string (do not use for free text)
'nohtml'	verifies that there is no html code
'alphanohtml'	checks that there is no html code
'custom'	defined by the following filters and options with the parameters $filter and $options

For more information see the comments of the function in the file htdocs/core/lib/functions.lib.php

GETPOSTISSET()

GETPOSTISSET(variableName) allows to know if the GET or POST variable passed in parameter is defined.

Example in php:

if (isset($_POST['myField'])){...}

becomes :

if (GETPOSTISSET('myField')){...}

For more information see the comments of the function in the file htdocs/core/lib/functions.lib.php

img_picto

img_picto() function to insert an image.

print img_picto(imagetitle,imagename);

For more information see the comments of the function in the file htdocs/core/lib/functions.lib.php