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<?php |
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namespace TraderInteractive\Filter; |
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use DateTimeInterface; |
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use DateTimeZone; |
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use DateTime as DateTimeStandard; |
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/** |
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* A collection of filters for filtering strings into \DateTime objects. |
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*/ |
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class DateTime |
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{ |
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/** |
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* Filters the given value into a \DateTime object. |
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* |
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* @param mixed $value The value to be filtered. |
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* @param boolean $allowNull True to allow nulls through, and false (default) if nulls should not be allowed. |
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* @param DateTimeZone $timezone A \DateTimeZone object representing the timezone of $value. |
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* If $timezone is omitted, the current timezone will be used. |
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* |
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* @return DateTimeStandard|null |
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* |
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* @throws Exception if the value did not pass validation. |
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*/ |
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public static function filter($value, bool $allowNull = false, DateTimeZone $timezone = null) |
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{ |
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if ($value === null && $allowNull) { |
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return null; |
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} |
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if ($value instanceof \DateTime) { |
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return $value; |
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} |
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if (is_int($value) || ctype_digit($value)) { |
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$value = "@{$value}"; |
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} |
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if (!is_string($value) || trim($value) == '') { |
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throw new Exception('$value is not a non-empty string'); |
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} |
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return new \DateTime($value, $timezone); |
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} |
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/** |
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* Filters the give \DateTime object to a formatted string. |
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* |
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* @param DateTimeInterface $dateTime The date to be formatted. |
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* @param string $format The format of the outputted date string. |
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* |
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* @return string |
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* |
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* @throws \InvalidArgumentException Thrown if $format is not a string |
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*/ |
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public static function format(DateTimeInterface $dateTime, string $format = 'c') : string |
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{ |
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if (!is_string($format) || trim($format) === '') { |
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throw new \InvalidArgumentException('$format is not a non-empty string'); |
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} |
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return $dateTime->format($format); |
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} |
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} |
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traderinteractive /
filter-php
Let’s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let’s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: