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我有一个包含许多字段的 PHP 表单。我想要的是动态地将字段添加到在 PostgreSQL 表中插入值的查询中，具体取决于这些字段的内容。如果字段（例如日期、整数等）为空，我不希望它出现在查询中，因为当我尝试插入表时它会导致“语法错误”，因为它等待插入值。请帮忙！

编辑

INSERT INTO hcd_customermeters ("meterSN", "contractCode",
                "deviceManufacturer", "deviceType",
                "firstInstallationDate", "diameter",
                "pipeID", "operatorCreator", "warehouseDeliveryDate",
                "recordCreation", "SRID") 
            VALUES ($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11)'
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1 回答 1

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在您的 mysql 查询中定义变量名称不正确的更改名称：

PHP 变量的规则：

1) variable starts with the $ sign, followed by the name of the variable
2) variable name must start with a letter or the underscore character
3) **variable name cannot start with a number**
4) variable name can only contain alpha-numeric characters and underscores (A-z, 0-9, and _ )
Variable names are case sensitive ($y and $Y are two different variables)



$sql_insert = 'INSERT INTO hcd_customermeters ("meterSN", "contractCode", "deviceManufacturer", "deviceType", "firstInstallationDate", "diameter", "pipeID", "operatorCreator", "warehouseDeliveryDate", "recordCreation", "SRID") 
            VALUES ("'.$variableName."', "'.$variableName."', "'.$variableName."',"'.$variableName."', "'.$variableName."', "'.$variableName."', "'.$variableName."', "'.$variableName."', "'.$variableName."', "'.$variableName."',"'.$variableName."')';


mysql_query($sql_insert);

如果有任何问题请提及。

于 2013-10-23T12:27:37.333 回答