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Add CurlOptions::getName($option) #15

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Add CurlOptions::getName($option) #15

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37 changes: 36 additions & 1 deletion Curl/CurlOptions.php
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Original file line number Diff line number Diff line change
Expand Up @@ -15,8 +15,16 @@
*/
final class CurlOptions
{
/**
* @var array Associtative array of constant value => constant type constrain
*/
static private $option_value_types = array();

/**
* @var array Associative array of constant value => constant name
*/
static private $option_value_names = array();

/**
* Checks which cURL constants is defined and loads them as valid options
*/
Expand Down Expand Up @@ -141,10 +149,30 @@ static private function loadOptions() {
foreach ($options as $option => $type) {
if (defined($option)) {
static::$option_value_types[constant($option)] = $type;
static::$option_value_names[constant($option)] = $option;
}
}
}

/**
* Fetch option constant realname from a given curl option value
*
* @param int $option curl option value CURLOPT_*
* @return string curl option constant name
*/
static public function getName($option)
{
if (!static::$option_value_types) {
static::loadOptions();
}

if (!array_key_exists($option, static::$option_value_names)) {
throw new \OutOfRangeException('Illegal index ' . $option);
}

return static::$option_value_names[$option];
}

/**
* Determine whether or not the value passed is a valid cURL option
*
Expand Down Expand Up @@ -179,7 +207,7 @@ static public function checkOptionValue($option, $value, $throw = true) {
$result = static::checkType($value, static::$option_value_types[$option]);

if(!$result && $throw) {
throw new \InvalidArgumentException("Invalid value for the given cURL option");
throw new \InvalidArgumentException("Invalid value for the given cURL option " . self::$option_value_names[$option]);
}

return $result;
Expand All @@ -188,6 +216,13 @@ static public function checkOptionValue($option, $value, $throw = true) {
}
}

/**
* Check a value against a given string type
*
* @param mixed $value option value to check against the input type
* @param string $type a given type in bool, string, int, resource, callable, ..
* @return bool true if type ok, false otherwise
*/
static private function checkType($value, $type) {

$result = false;
Expand Down