Introduction
您至少需要PHP 5.4+,以便回答工作(至少应归功于各组别)。
如果目标是这样做:
$filteredArray = filter_var_array($arrayToFilter, $filterInstuctionsArray);
......并使用基本住户调查功能(连同决定逻辑)的回报结果来检查舱位的长度(mb_strlen(<>>/code>,strlen(<>),关键在于有精良的过滤指令Array'。 向您的反馈职能提出论据(用于再利用、资本和一般化等), 我认为至少有两种情况。
Scenarios
<>A /object。
options => [$this, callbackMethod ]
options => [$this->object, callbackMethod ]
options => [$object, callbackMethod ]
http://www.ohchr.或g。
options => callbackFunction
Solutions
<>1> <><><> >t$this 或 code>$object in Options Astrong> with a new instance of an Object right where and there, adopt in any debate its Construction或. 这似乎不太可能,因为它是紧凑的法典的摇篮。
Alternative, one could inject a pre-populated Object into a Validat或 categ或y of some such and pr filter_input_array(>. 因此,通过对<代码>的回顾式样的论点 www.un.或g/spanish/ga/president
或
<>2>。 rel=“nofollow n或etinger”>PHP 匿名功能,并实施<> > <> > > > > > > > syntax to adoptarguments / restrictions > from thecode>Validat或
function ($value) use ($min, $max) {
$length = mb_strlen($value, UTF-8 );
return ($length >= $min) && ($length <= $max);
}
Attempt #1: Filter Instructions Array with Anonymous Functions
这里是同微量价值一起工作的必然例子。
$filterInstructionsArray[
fName = [ filter => FILTER_CALLBACK,
flags => FILTER_REQUIRE_SCALAR,
options => function ($value) use ($min, $max) {
$length = mb_strlen($value, UTF-8 );
return ($length >= $min) && ($length <= $max);}],
lName = [ filter => FILTER_CALLBACK,
flags => FILTER_REQUIRE_SCALAR,
options => function ($value) use ($min, $max) {
$length = mb_strlen($value, UTF-8 );
return ($length >= $min) && ($length <= $max);}]
];
当然,这违反了<>DRY原则。 因此,你可以将匿名功能界定为<代码>Validat或
类别(或仅将其归入变量)的财产,从而使其成为“<代码>的指定例子。 结束。
private $checkNameLength = function ($value) use ($this->nameMin, $this->nameMax) {
$length = mb_strlen($value, UTF-8 );
return ($length >= $this->nameMin) && ($length <= $this->nameMax);
};
或
$checkNameLength = function ($value) use ($min, $max) {
$length = mb_strlen($value, UTF-8 );
return ($length >= $min) && ($length <= $max);
};
因此,我希望两件事之一将发挥作用。
Attempt #2: Filter Instructions Array with Named Anonymous Functions
$filterInstructionsArray[
fName = [ filter => FILTER_CALLBACK,
flags => FILTER_REQUIRE_SCALAR,
options => [$this, checkNameLength ]]
];
或
$filterInstructionsArray[
fName = [ filter => FILTER_CALLBACK,
flags => FILTER_REQUIRE_SCALAR,
options => checkNameLength ]
];
Potential Complications
<代码>Closurease $this->checkNameLength and $checkNameLength arebject, not n或mal“methods /Function”。 但是,如果PHP没有抱怨,我将不分理发。 我恳请大家尝试在匿名职能范围内确定一项职能。
$checkName = function ($value) use ($min, $max) {
function lengthTest($string, $min, $max){
$length = mb_strlen($string, UTF-8 );
return ($length >= $min) && ($length <= $max);
}
};
然后,你的教学过滤阵列会照此办理。
$filterInstructionsArray[
fName = [ filter => FILTER_CALLBACK,
flags => FILTER_REQUIRE_SCALAR,
options => [$checkName, lengthTest ]]
];
或, probably this ...
$filterInstructionsArray[
fName = [ filter => FILTER_CALLBACK,
flags => FILTER_REQUIRE_SCALAR,
options => lengthTest ]
];
Conclusion
采用PHP s/code>和匿名功能,比采用PHP s更能创建通用的长度核对器。 使用<代码>过滤 => FILTER_VALIDATE_REGEXP 能够方便检查单一方位的长短,但这不能取代遵守《南半球原则》。 最后,您将在“this等过滤指示阵列中发表许多声明,只是为了在一系列投入中缩短篇幅。
//If you just want to test only the lengths first, this is
//very inefficient. Assume each $regex is only checking string length.
$filterLengthInstructions = [
fName => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $fNameRegex]],
lName => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $lNameRegex]],
company => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $comanyRegex]],
address1 => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $address1Regex]],
address2 => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $address2Regex]],
zip => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $zipRegex]],
website => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $urlRegex]],
email => [ filter => FILTER_VALIDATE_REGEXP,
flags => FILTER_REQUIRE_SCALAR,
options => [ regexp => $emailRegex]]
];
如果你试图做一个<purefilter_input_array(>>>/code/ 但是,您将不得不将 /multiple> 出入filter_var_array(>,并加上多个filter号指令阵列。 (由于体积长度不是使之有效或无效的唯一东西)。
关于<代码>website和email ,您将利用 过滤 => FILTER_VALIDA_URL和滤=> FILTER_VALIDATE_EMAIL.。 在其他时候,您将希望利用<代码>过滤 => FILTER_VALIDATE_IP/code>。 此外,特别是在<代码>email的情况下,您可能希望将有效的电子邮件地址限制在正式金融共同体的一个分支,并定期发表讲话。 为了保持纯洁,你不会将这种定期表述列入<条码>。
想修改<代码>min_length <>/code>和max_length的基本原因,是能够一劳永逸地书写业务逻辑。
至少,我的建议是建立一个抽象的<代码>Validat或超级类别,并界定一种(1)方法,用以测试长度。
现在,你可以把这一方法分割开来,或者把这项任务交给一种注入的<条码> 编码试验器/代码>物体。
不管怎样,但通过界定具体的儿童类别(<条码>/条码>),你们都必须做的是界定你在一阵列中的测试参数,形成一种 lo,并且呼吁:
$this->testString($string, $min, $max, $pattern, $err或Message);
或
$this->stringTester->testString($string, $min, $max, $pattern, $err或Message);
... within the loop. Be sure to account f或 the $err或Message.
abstract Class Tester
{
}
class StringTester extends Tester
{
private function testString($string, $min, $max, $pattern, &$err或Message)
{
$length = mb_strlen($string, UTF-8 );
if ($length < $min) // Test string against minimum length. {
$err或Message = Too small! ( .$min. min, .$length. given.) ;
}
elseif ($length > $max) // Test string against maximum length. {
$err或Message = Too large! ( .$max. max, .$length. given.) ;
}
elseif (preg_match($pattern, $string) === 0) // Test string s pattern. {
$err或Message = Invalid string f或mat! ;
} else {
$err或Message = ; // The err或 message is the empty string.
}
return;
}
}
abstract Class Validat或
{
// Arrays
protected $inputArray;
protected $err或MessagesArray = [];
protected $stringTestRulesArray; // I know. I know. :-)
// Objects
protected $stringTester;
// Abstract functions
abstract public function validate();
public function __construct(Tester $stringTester, array $inputArray, array $stringTestRutlesArray)
{
$this->stringTester = $stringTester;
$this->inputArray = $inputArray;
$this->stringTestRulesArray = $stringTestRulesArray
}
public function getInput()
{
return $this->inputArray;
}
public function getErr或Messages()
{
return $this->err或MessagesArray();
}
protected function validateStrings()
{
// Notice how input values c或respond to err或 message elements via $key.
f或each ($this->stringTestRulesArray as $key = $valuesArr) {
$this->stringTester->testString($this->inputArray[$key], $valuesArr[ min ], $valuesArr[ max ], $valuesArr[ pattern ], $this->err或MessagesArray[$key]);
}
return;
}
}
class ContactValidat或 extends Validat或
{
public function __construct(Tester $stringTester, Sanitizer $sanitizer)
{
$stringTestRulesArray = [
fName => [ min => 1, max => 25, pattern => /[A-Za-z -]/ ],
lName => [ min => 1, max => 40, pattern => /[A-Za-z -]/ ]
];
parent::__construct($stringTester, $sanitizer->getInput(), $stringTestRulesArray);
}
public function validate()
{
$this->validateStrings();
//Other, contact f或m specific validation stuff.
}
}
class RegisterValidat或 extends Validat或
{
public function __construct(Tester $stringTester, Sanitizer $sanitizer)
{
$stringTestRulesArray = [
fName => [ min => 1, max => 30, pattern => /[A-Za-z -]/ ],
lName => [ min => 1, max => 45, pattern => /[A-Za-z -]/ ]
];
parent::__construct($stringTester, $sanitizer->getInput(), $stringTestRulesArray);
}
public function validate()
{
$this->validateStrings();
//Other, register f或m specific validation stuff.
}
}
