PlasmaPHP / driver-mysql

src/TextProtocolValues.php

<?php
/**
 * Plasma Driver MySQL component
 * Copyright 2018 PlasmaPHP, All Rights Reserved
 *
 * Website: https://github.com/PlasmaPHP
 * License: https://github.com/PlasmaPHP/driver-mysql/blob/master/LICENSE
*/

namespace Plasma\Drivers\MySQL;

/**
 * Text protocol rowset values decoder.
 * @internal
 */
class TextProtocolValues {
    /**
     * Standard decode value, if type extensions failed.
     * @param \Plasma\ColumnDefinitionInterface  $column
     * @param string|null                        $param
     * @return mixed
     * @throws \Plasma\Exception
     */
    static function decode(\Plasma\ColumnDefinitionInterface $column, $param) {
        $type = $column->getType();
        $flags = $column->getFlags();
        
        if($param !== null && ($flags & \Plasma\Drivers\MySQL\FieldFlags::ZEROFILL_FLAG) === 0) {
            switch(true) {
                case ($type === 'LONG'):

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                    if(($flags & \Plasma\Drivers\MySQL\FieldFlags::UNSIGNED_FLAG) === 0 || \PHP_INT_SIZE > 4) {
                        $param = (int) $param;
                    }

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                break;

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                case ($type === 'LONGLONG'):

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                    if(($flags & \Plasma\Drivers\MySQL\FieldFlags::UNSIGNED_FLAG) === 0 && \PHP_INT_SIZE > 4) {
                        $param = (int) $param;
                    }
                break;

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                case static::isTypeTinyShortInt($type):

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                    $param = (int) $param;
                break;

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                case static::isTypeFloat($type):

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                    $param = (float) $param;
                break;
                // Other types are taken as string
            }
        }
        
        return $param;
    }
    
    /**
     * @param string  $type
     * @return bool
     */
    static function isTypeTinyShortInt(string $type): bool {
        $types = array('TINY', 'SHORT', 'INT24');
        return \in_array($type, $types, true);
    }
    
    /**
     * @param string  $type
     * @return bool
     */
    static function isTypeFloat(string $type): bool {
        $types = array('FLOAT', 'DOUBLE');
        return \in_array($type, $types, true);
    }
}