02-09-2009
Continuing
I think I need to install libgd next, is that correct?
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LEARN ABOUT PHP
filter_var_array
FILTER_VAR_ARRAY(3) 1 FILTER_VAR_ARRAY(3)
filter_var_array - Gets multiple variables and optionally filters them
SYNOPSIS
mixed filter_var_array (array $data, [mixed $definition], [bool $add_empty = true])
DESCRIPTION
This function is useful for retrieving many values without repetitively calling filter_var(3).
PARAMETERS
o $data
- An array with string keys containing the data to filter.
o $definition
- An array defining the arguments. A valid key is a string containing a variable name and a valid value is either a filter type,
or an array optionally specifying the filter, flags and options. If the value is an array, valid keys are filter which specifies
the filter type, flags which specifies any flags that apply to the filter, and options which specifies any options that apply to
the filter. See the example below for a better understanding. This parameter can be also an integer holding a filter constant.
Then all values in the input array are filtered by this filter.
o $add_empty
- Add missing keys as NULL to the return value.
RETURN VALUES
An array containing the values of the requested variables on success, or FALSE on failure. An array value will be FALSE if the filter
fails, or NULL if the variable is not set.
EXAMPLES
Example #1
A filter_var_array(3) example
<?php
error_reporting(E_ALL | E_STRICT);
$data = array(
'product_id' => 'libgd<script>',
'component' => '10',
'versions' => '2.0.33',
'testscalar' => array('2', '23', '10', '12'),
'testarray' => '2',
);
$args = array(
'product_id' => FILTER_SANITIZE_ENCODED,
'component' => array('filter' => FILTER_VALIDATE_INT,
'flags' => FILTER_FORCE_ARRAY,
'options' => array('min_range' => 1, 'max_range' => 10)
),
'versions' => FILTER_SANITIZE_ENCODED,
'doesnotexist' => FILTER_VALIDATE_INT,
'testscalar' => array(
'filter' => FILTER_VALIDATE_INT,
'flags' => FILTER_REQUIRE_SCALAR,
),
'testarray' => array(
'filter' => FILTER_VALIDATE_INT,
'flags' => FILTER_FORCE_ARRAY,
)
);
$myinputs = filter_var_array($data, $args);
var_dump($myinputs);
echo "
";
?>
The above example will output:
array(6) {
["product_id"]=>
array(1) {
[0]=>
string(17) "libgd%3Cscript%3E"
}
["component"]=>
array(1) {
[0]=>
int(10)
}
["versions"]=>
array(1) {
[0]=>
string(6) "2.0.33"
}
["doesnotexist"]=>
NULL
["testscalar"]=>
bool(false)
["testarray"]=>
array(1) {
[0]=>
int(2)
}
}
CHANGELOG
+--------+------------------------------+
|Version | |
| | |
| | Description |
| | |
+--------+------------------------------+
| 5.4.0 | |
| | |
| | Added $add_empty parameter. |
| | |
+--------+------------------------------+
SEE ALSO
filter_input_array(3), filter_var(3), filter_input(3), "Types of filters".
PHP Documentation Group FILTER_VAR_ARRAY(3)