Created
April 5, 2013 17:42
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my version of oDesk PHP Programming Skills Test
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| <?php | |
| // 1 | |
| $_POST['checkbox_2'] = true; | |
| $_POST['checkbox_1'] = true; | |
| $_POST['checkbox_3'] = true; | |
| for ($_POST as $key => $val) { | |
| if (preg_match('/checkbox_(\d+)/', $key, $matches)) { | |
| echo $matches[1] . ' '; | |
| } | |
| } | |
| // 2 | |
| for ($i = 200; $i <= 600; $i++) { | |
| if ($i % 8 === 0) { | |
| if ($i !== 200) { | |
| echo ','; | |
| } | |
| echo $i; | |
| } | |
| } | |
| // 4 | |
| function ReformatPhoneNumber($number) { | |
| $valid = preg_match('/^\d[\d -]+\d$/', $number); | |
| $digit_number = preg_replace('/\D/', '', $number); | |
| $len = strlen($digit_number); | |
| if ($valid && $len > 6 && $len < 13) { | |
| return $digit_number; | |
| } else { | |
| throw new Exception('Invalid phone number'); | |
| } | |
| } | |
| echo ReformatPhoneNumber('012-345 69'); | |
| // echo ReformatPhoneNumber('012345'); | |
| // echo ReformatPhoneNumber('-012345 678'); | |
| // 5 | |
| function GeneratePassword($length, $alphaNum) { | |
| $alphaNumArray = str_split($alphaNum); | |
| $arrayLength = sizeof($alphaNumArray); | |
| $returnString = ''; | |
| for ($i = 0; $i < $length; $i++) { | |
| $index = rand(0, $arrayLength - 1); | |
| $returnString .= $alphaNumArray[$index]; | |
| } | |
| return $returnString; | |
| } | |
| echo GeneratePassword(5,'abc0123'); | |
| // echo GeneratePassword(7,'abczxc012394'); | |
| // 6 | |
| function ReadXml($xmlstr) { | |
| if (preg_match_all('/<(\w+)[^>]*>(.*)<\/\1>/i', $xmlstr, $matches)) { | |
| // var_dump($matches); | |
| foreach ($matches[1] as $key => $value) { | |
| $xml_value = $matches[2][$key]; | |
| if (preg_match('/</', $xml_value)) { | |
| echo $value . PHP_EOL; | |
| ReadXml($matches[2][$key]); | |
| } else { | |
| echo $value . ': ' . $xml_value . PHP_EOL; | |
| } | |
| } | |
| } | |
| } | |
| $xmlstr= '<Address><to>James</to><from>Jani</from><heading>Reminder</heading><body>Please check your mail.</body></Address>'; | |
| echo ReadXml($xmlstr); | |
| // 7 | |
| function GetUniqueOnes($arr) { | |
| return implode(',', array_unique($arr)); | |
| } | |
| $arr = array(34,54,67,68,141,151,161,141,54,151,54); | |
| //34,54,67,68,141,151,161 | |
| echo GetUniqueOnes($arr); | |
| // 8 | |
| function MaxArray($arr) { | |
| return max(iterator_to_array(new RecursiveIteratorIterator(new RecursiveArrayIterator($arr)))); | |
| } | |
| $arr = array(array(141,151,161), 2, 3, array(101, 202, array(303,404))); | |
| echo MaxArray($arr); | |
| // 9 | |
| function SplitEmailAddress($address) { | |
| $addressArray = explode('@', $address); | |
| return array( | |
| 'user' => $addressArray[0], | |
| 'domain' => $addressArray[1], | |
| ); | |
| } | |
| $arr = SplitEmailAddress('[email protected]'); | |
| var_dump($arr); | |
| // 10 | |
| function callback($a) { | |
| return strlen($a); | |
| } | |
| function GetLongestString() { | |
| $args = func_get_args(); | |
| return max(array_map('callback', $args)); | |
| } | |
| echo GetLongestString("a", "aaa", "aa"); | |
| echo GetLongestString("a", "bcd", "efgh", "ij", ""); | |
Here is valid ReformatPhoneNumber function
function ReformatPhoneNumber($number) {
$numberValid = false;
$patterns = array(
'/^\d[0-9\s-]+\d$/',
'/(-|\s)(-|\s)/'
);
if(preg_match ($patterns[0], $number) &&
!preg_match($patterns[1], $number)) {
$numericNumber = preg_replace('/\D/', '', $number);
$numberLength = strlen($numericNumber);
if ($numberLength > 6 && $numberLength < 13) {
$numberValid = true;
}
}
if($numberValid) {
return $numericNumber;
} else {
throw new Exception('Invalid phone number');
}
}
try {
var_dump(ReformatPhoneNumber('012-345 69'));
} catch (Exception $e) {
echo $e->getMessage(), '<br/>';
}
try {
var_dump(ReformatPhoneNumber('012345'));
} catch (Exception $e) {
echo $e->getMessage(), '<br/>';
}
try {
var_dump(ReformatPhoneNumber('-012345 678'));
} catch (Exception $e) {
echo $e->getMessage(), '<br/>';
}
try {
var_dump(ReformatPhoneNumber('01203- 34566'));
} catch (Exception $e) {
echo $e->getMessage(), '<br/>';
}
try {
var_dump(ReformatPhoneNumber('123456678875432'));
} catch (Exception $e) {
echo $e->getMessage(), '<br/>';
}
try {
var_dump(ReformatPhoneNumber('1234x567'));
} catch (Exception $e) {
echo $e->getMessage(), '<br/>';
}
Hey @Sukonnik-Illia @andreyart guys, just noticed your comments :-) thanks anyway for comments
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//4 you have a mistake in this answer
$pattern[0] = '/^\d[0-9\s-]+\d$ /';
your code will pass phone numbers as '1--234567','1 -234567' and similar
My version is:
function ReformatPhoneNumber($number)
{
$pattern[1] = '/(-|\s)(-|\s)/';
if(preg_match ($pattern[0], $number) &&
!preg_match($pattern[1], $number))
{
$repl_number = preg_replace('/\D/', '', $number);
$len = strlen($repl_number);
else throw new Exeption('Invalid phone number');
}