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<?php |
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// +---------------------------------------------------------------------- |
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// | ThinkPHP [ WE CAN DO IT JUST THINK ] |
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// +---------------------------------------------------------------------- |
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// | Copyright (c) 2006~2019 http://thinkphp.cn All rights reserved. |
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// +---------------------------------------------------------------------- |
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// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 ) |
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// +---------------------------------------------------------------------- |
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// | Author: liu21st <[email protected]> |
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// +---------------------------------------------------------------------- |
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declare (strict_types = 1); |
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namespace think\db\concern; |
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use PDO; |
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/** |
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* 参数绑定支持 |
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*/ |
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trait ParamsBind |
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{ |
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/** |
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* 当前参数绑定 |
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* @var array |
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*/ |
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protected $bind = []; |
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/** |
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* 批量参数绑定 |
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* @access public |
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* @param array $value 绑定变量值 |
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* @return $this |
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*/ |
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public function bind(array $value) |
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{ |
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$this->bind = array_merge($this->bind, $value); |
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return $this; |
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} |
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/** |
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* 单个参数绑定 |
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* @access public |
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* @param mixed $value 绑定变量值 |
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* @param integer $type 绑定类型 |
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* @param string $name 绑定标识 |
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* @return string |
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*/ |
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public function bindValue($value, int $type = null, string $name = null) |
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{ |
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$name = $name ?: 'ThinkBind_' . (count($this->bind) + 1) . '_'; |
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$this->bind[$name] = [$value, $type ?: PDO::PARAM_STR]; |
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return $name; |
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} |
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/** |
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* 检测参数是否已经绑定 |
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* @access public |
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* @param string $key 参数名 |
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* @return bool |
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*/ |
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public function isBind($key) |
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{ |
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return isset($this->bind[$key]); |
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} |
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/** |
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* 参数绑定 |
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* @access public |
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* @param string $sql 绑定的sql表达式 |
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* @param array $bind 参数绑定 |
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* @return void |
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*/ |
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protected function bindParams(string &$sql, array $bind = []): void |
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{ |
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foreach ($bind as $key => $value) { |
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if (is_array($value)) { |
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$name = $this->bindValue($value[0], $value[1], $value[2] ?? null); |
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} else { |
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$name = $this->bindValue($value); |
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} |
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if (is_numeric($key)) { |
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$sql = substr_replace($sql, ':' . $name, strpos($sql, '?'), 1); |
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} else { |
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$sql = str_replace(':' . $key, ':' . $name, $sql); |
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} |
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} |
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} |
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/** |
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* 获取绑定的参数 并清空 |
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* @access public |
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* @param bool $clear 是否清空绑定数据 |
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* @return array |
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*/ |
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public function getBind(bool $clear = true): array |
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{ |
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$bind = $this->bind; |
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if ($clear) { |
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$this->bind = []; |
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} |
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return $bind; |
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} |
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} |
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top-think /
framework
