76 lines
1.9 KiB
PHP
76 lines
1.9 KiB
PHP
<?php
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namespace nur\sery\wip\php\access;
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use ArrayAccess;
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use nulib\cl;
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/**
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* Class KeyAccess: accès à une valeur d'une clé dans un tableau
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*/
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class KeyAccess extends AbstractAccess {
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function __construct(&$array, $key, ?array $params=null) {
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parent::__construct($params);
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$this->array =& $array;
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$this->key = $key;
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$this->allowNull = $params["allow_null"] ?? true;
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$this->allowFalse = $params["allow_false"] ?? false;
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}
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/** @var array|ArrayAccess */
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protected $array;
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/** @var int|string|array */
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protected $key;
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protected bool $allowNull;
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protected bool $allowFalse;
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function reset(&$array): self {
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$this->array =& $array;
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return $this;
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}
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function exists(): bool {
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$key = $this->key;
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if ($key === null) return false;
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return cl::phas($this->array, $key);
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}
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function available(): bool {
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if (!$this->exists()) return false;
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$value = cl::pget($this->array, $this->key);
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if ($value === "") return $this->allowEmpty;
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if ($value === null) return $this->allowNull;
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if ($value === false) return $this->allowFalse;
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return true;
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}
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function get($default=null) {
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if ($this->key === null) return $default;
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$value = cl::pget($this->array, $this->key, $default);
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if ($value === "" && !$this->allowEmpty) return $default;
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if ($value === null && !$this->allowNull) return $default;
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if ($value === false && !$this->allowFalse) return $default;
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return $value;
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}
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function set($value): void {
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if ($this->key === null) return;
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cl::pset($this->array, $this->key, $value);
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}
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function del(): void {
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if ($this->key === null) return;
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cl::pdel($this->array, $this->key);
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}
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function addKey($key): self {
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return new KeyAccess($this->array, cl::merge($this->key, $key), [
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"allow_empty" => $this->allowEmpty,
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"allow_null" => $this->allowNull,
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"allow_false" => $this->allowFalse,
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]);
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}
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}
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