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<?php |
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namespace Distilleries\Contentful\Helpers; |
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use Parsedown; |
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use Illuminate\Support\Carbon; |
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class Caster |
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{ |
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/** |
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* Cast value to a string. |
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* |
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* @param mixed $str |
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* @return string |
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*/ |
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public static function string($str): string |
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{ |
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return (string) $str; |
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} |
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/** |
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* Cast value to a string. |
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* |
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* @param mixed $str |
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* @param mixed $default |
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* @return \Illuminate\Support\Carbon|null |
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*/ |
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public static function datetime($str, $default = null): ?Carbon |
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{ |
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if (empty($str)) { |
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return $default; |
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} |
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try { |
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$carbon = new Carbon($str); |
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} catch (\Exception $e) { |
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$carbon = null; |
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} |
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return $carbon; |
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} |
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/** |
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* Transform data to its JSON representation. |
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* |
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* @param mixed $data |
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* @param mixed $default |
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* @return string |
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*/ |
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public static function toJson($data, $default = null): string |
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{ |
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return ! empty($data) ? json_encode($data): $default; |
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} |
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/** |
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* Transform a JSON string to its associative array representation. |
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* |
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* @param mixed $json |
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* @return array|null |
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*/ |
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public static function fromJson($json): ?array |
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{ |
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if (empty($json)) { |
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return null; |
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} |
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$data = json_decode($json, true); |
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if (json_last_error() !== JSON_ERROR_NONE) { |
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return null; |
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} |
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return $data; |
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} |
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/** |
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* Transform markdown content to an HTML string. |
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* |
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* @param mixed $md |
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* @param mixed $default |
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* @return string |
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*/ |
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public static function markdown($md, $default = null): ?string |
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{ |
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if (empty($md)) { |
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return $default; |
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} |
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return (new Parsedown)->setBreaksEnabled(true)->text($md); |
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} |
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/** |
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* Cast an integer to an integer value otherwise to null. |
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* |
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* @param mixed $int |
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* @param mixed $default |
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* @return integer|null |
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*/ |
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public static function integer($int, $default = null): ?int |
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{ |
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return is_numeric($int) ? (int) $int : $default; |
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} |
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/** |
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* Cast an boolean to an boolean value otherwise to null. |
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* |
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* @param mixed $bool |
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* @param mixed $default |
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* @return boolean|null |
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*/ |
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public static function boolean($bool, $default = null): ?bool |
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{ |
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return is_bool($bool) ? (bool) $bool : $default; |
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} |
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/** |
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* Cast an float to an float value otherwise to null. |
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* |
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* @param mixed $float |
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* @param mixed $default |
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* @return float|null |
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*/ |
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public static function float($float, $default = null): ?float |
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{ |
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return is_float($float) ? (float) $float : $default; |
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} |
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/** |
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* Return entry ID in given "Link" array. |
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* |
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* @param array $entry |
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* @param mixed $default |
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* @return string|null |
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*/ |
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public static function entryId(array $entry, $default = null): ?string |
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{ |
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return (isset($entry['sys']) and isset($entry['sys']['id'])) ? $entry['sys']['id'] : $default; |
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} |
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} |
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Distilleries /
Laravel-Contentful-Utilities
PHP has two types of connecting operators (logical operators, and boolean operators):
and&&or||The difference between these is the order in which they are executed. In most cases, you would want to use a boolean operator like
&&, or||.Let’s take a look at a few examples:
Logical Operators are used for Control-Flow
One case where you explicitly want to use logical operators is for control-flow such as this:
Since
dieintroduces problems of its own, f.e. it makes our code hardly testable, and prevents any kind of more sophisticated error handling; you probably do not want to use this in real-world code. Unfortunately, logical operators cannot be combined withthrowat this point:These limitations lead to logical operators rarely being of use in current PHP code.