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<?php |
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namespace mindplay\sql\framework; |
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use UnexpectedValueException; |
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/** |
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* This class represents an as-of-yet unprepared SQL statement. |
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*/ |
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class Statement implements Executable |
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{ |
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/** |
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* @var string |
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*/ |
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private $sql; |
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/** |
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* @var array map where placeholder name maps to a scalar value, or array of scalar values |
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*/ |
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private $params = []; |
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/** |
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* @param string $sql SQL statement (with placeholders) |
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*/ |
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public function __construct($sql) |
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{ |
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$this->sql = $sql; |
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} |
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/** |
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* Bind an individual placeholder name to a given value. |
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* |
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* Acceptable value types are scalar types (string, int, float, bool, null) and arrays of scalar values. |
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* |
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* @param string $name placeholder name |
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* @param array|string|int|bool|null $value value to bind |
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* |
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* @return void |
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*/ |
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public function bind($name, $value) |
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{ |
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static $SCALAR_TYPES = [ |
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'integer' => true, |
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'double' => true, |
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'string' => true, |
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'boolean' => true, |
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'NULL' => true, |
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]; |
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$value_type = gettype($value); |
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if ($value_type === 'array') { |
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foreach ($value as $item) { |
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$item_type = gettype($item); |
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if (! isset($SCALAR_TYPES[$item_type])) { |
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throw new UnexpectedValueException("unexpected item type in array: {$item_type}"); |
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} |
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} |
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} else { |
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if (! isset($SCALAR_TYPES[$value_type])) { |
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throw new UnexpectedValueException("unexpected value type: {$value_type}"); |
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} |
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} |
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$this->params[$name] = $value; |
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} |
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/** |
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* Applies a set of placeholder name/value pairs and binds them to individual placeholders. |
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* |
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* @param array $params placeholder name/value pairs |
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* |
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* @return void |
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*/ |
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public function apply(array $params) |
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{ |
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foreach ($params as $name => $value) { |
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$this->bind($name, $value); |
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} |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getSQL() |
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{ |
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return $this->sql; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function getParams() |
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{ |
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return $this->params; |
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} |
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} |
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mindplay-dk /
sql
There are different options of fixing this problem.
If you want to be on the safe side, you can add an additional type-check:
If you are sure that the expression is traversable, you might want to add a doc comment cast to improve IDE auto-completion and static analysis:
Mark the issue as a false-positive: Just hover the remove button, in the top-right corner of this issue for more options.