egroupware/etemplate/inc/get_var.php

<?php
	function reg_var($varname, $method = 'any', $valuetype = 'alphanumeric',$default_value='',$register=True)
	{
		if($method == 'any')
		{
			$method = Array('POST','GET','COOKIE','SERVER','GLOBAL','DEFAULT');
		}
		elseif(!is_array($method))
		{
			$method = Array($method);
		}
		$cnt = count($method);
		for($i=0;$i<$cnt;$i++)
		{
			switch(strtoupper($method[$i]))
			{
				case 'DEFAULT':
					if($default_value)
					{
						$value = $default_value;
						$i = $cnt+1; /* Found what we were looking for, now we end the loop */
					}
					break;
				case 'GLOBAL':
					if(@isset($GLOBALS[$varname]))
					{
						$value = $GLOBALS[$varname];
						$i = $cnt+1;
					}
					break;
				case 'POST':
				case 'GET':
				case 'COOKIE':
				case 'SERVER':
					if(phpversion() >= '4.2.0')
					{
						$meth = '_'.strtoupper($method[$i]);
					}
					else
					{
						$meth = 'HTTP_'.strtoupper($method[$i]).'_VARS';
					}
					if(@isset($GLOBALS[$meth][$varname]))
					{
						$value = $GLOBALS[$meth][$varname];
						$i = $cnt+1;
					}
					break;
				default:
					if(@isset($GLOBALS[strtoupper($method[$i])][$varname]))
					{
						$value = $GLOBALS[strtoupper($method[$i])][$varname];
						$i = $cnt+1;
					}
					break;
			}
		}

		if (@!isset($value))
		{
			$value = $default_value;
		}

		if (@!is_array($value))
		{
			if ($value == '')
			{
				$result = $value;
			}
			else
			{
				if (sanitize($value,$valuetype) == 1)
				{
					$result = $value;
				}
				else
				{
					$result = $default_value;
				}
			}
		}
		else
		{
			reset($value);
			while(list($k, $v) = each($value))
			{
				if ($v == '')
				{
					$result[$k] = $v;
				}
				else
				{
					if (is_array($valuetype))
					{
						$vt = $valuetype[$k];
					}
					else
					{
						$vt = $valuetype;
					}

					if (sanitize($v,$vt) == 1)
					{
						$result[$k] = $v;
					}
					else
					{
						if (is_array($default_value))
						{
							$result[$k] = $default_value[$k];
						}
						else
						{
							$result[$k] = $default_value;
						}
					}
				}
			}
		}
		if($register)
		{
			$GLOBALS['phpgw_info'][$GLOBALS['phpgw_info']['flags']['currentapp']][$varname] = $result;
		}
		return $result;
	}

	/*!
	 @function get_var
	 @abstract retrieve a value from either a POST, GET, COOKIE, SERVER or from a class variable.
	 @author skeeter
	 @discussion This function is used to retrieve a value from a user defined order of methods.
	 @syntax get_var('id',array('HTTP_POST_VARS'||'POST','HTTP_GET_VARS'||'GET','HTTP_COOKIE_VARS'||'COOKIE','GLOBAL','DEFAULT'));
	 @example $this->id = get_var('id',array('HTTP_POST_VARS'||'POST','HTTP_GET_VARS'||'GET','HTTP_COOKIE_VARS'||'COOKIE','GLOBAL','DEFAULT'));
	 @param $variable name
	 @param $method ordered array of methods to search for supplied variable
	 @param $default_value (optional)
	*/
	function get_var($variable,$method='any',$default_value='')
	{
		return reg_var($variable,$method,'any',$default_value,False);
	}