PHP：如何将二进制字符串转换为普通字符串以避免MySql "Illegal mix of collations"错误
PHP: How to convert binary string into normal string in order to avoid MySql "Illegal mix of collations" error
我在处理包含 ñ,é 的 CSV 以及所有这些非 ASCII 字符并将这些词保存在 MySQL 中时遇到了很多问题。
为了解决这个问题，我创建了一个 CSV 文件，在一个单元格中包含以下数据：
iphonée@3,;= ÑÑñe x
我知道，如果我能保存这个词，我就会解决问题。
问题是，当我处理 CSV 时，我得到这个单元格
b"iphonée@3,;= ÑÑñe x"
二进制字符串！！.因此，当我使用此数据在我的数据库中执行 select 时，出现此错误：
QueryException {#1695
#sql: "select * from `seller_product_languages` where `seller_product_id` = ? and `lang` = ? and `name` = ? and `description` = ? and `description_html` = ? and `bullet_html` is null and `bullet` = ? and `meta_keywords` is null limit 1"
#bindings: array:6 [
0 => 102
1 => "es"
2 => b"iphonée@3,;= ÑÑñe x"
3 => "negro"
4 => "negro"
5 => ""
]
#message: b"SQLSTATE[HY000]: General error: 1267 Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '=' (SQL: select * from `seller_product_languages` where `seller_product_id` = 102 and `lang` = es and `name` = iphonée@3,;= ÑÑñe x and `description` = negro and `description_html` = negro and `bullet_html` is null and `bullet` = and `meta_keywords` is null limit 1)"
#code: "HY000"
#file: "/home/vagrant/Code/...../vendor/laravel/framework/src/Illuminate/Database/Connection.php"
#line: 664
-previous: PDOException {#1694
#message: "SQLSTATE[HY000]: General error: 1267 Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '='"
#code: "HY000"
#file: "/home/vagrant/Code/..../vendor/laravel/framework/src/Illuminate/Database/Connection.php"
#line: 330
+errorInfo: array:3 [
0 => "HY000"
1 => 1267
2 => "Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '='"
我的列类型是VARCHAR(255)，但我也使用TEXT类型。
所以，如果我不在我的字符串上使用非 ASCII 字符，我会得到一个普通字符串（不是二进制字符串）并且我可以完美地保存它。问题是当我添加 Ñéá 或任何奇怪的字符时，我得到一个二进制字符串，而该二进制字符串使我的数据库崩溃。
我看了看，所有 seller_product_languages 列都是 UTF-8，默认排序规则。
事情是这样的：
如何将二进制字符串转换为普通字符串？我如何才能检测到该字符串是二进制字符串以便进行此转换？
这是我唯一想到的解决办法，如果你认为你有另一个，我将不胜感激。
P.S.: 我最接近解决方案的方法是：
$arr = unpack("a*",$binary_string);
但我只得到 ASCII 字符：
$arr[1] =iphon�e@3,;= ���e x
环境：
- PHP 7.2
- Laravel 5.5
- 阿帕奇
- Ubuntu 18.04
SHOW VARIABLES LIKE 'c%'
character_set_client utf8
character_set_connection utf8
character_set_database utf8
character_set_filesystem binary
character_set_results utf8
character_set_server latin1
character_set_system utf8
character_sets_dir /usr/share/mysql/charsets/
check_proxy_users OFF
collation_connection utf8_general_ci
collation_database utf8_general_ci
collation_server latin1_swedish_ci
completion_type NO_CHAIN
concurrent_insert AUTO
connect_timeout 10
core_file OFF
show create table seller_products;
CREATE TABLE `seller_products` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`subcategory_id` int(10) unsigned NOT NULL,
`subcategory_name` varchar(45) NOT NULL,
`name` varchar(255) DEFAULT NULL,
`description` text CHARACTER SET utf8 COLLATE utf8_unicode_ci,
`sku` varchar(45) NOT NULL,
`brand` varchar(45) DEFAULT NULL,
`weight` int(10) DEFAULT NULL,
`height` int(10) DEFAULT NULL,
`length` int(10) DEFAULT NULL,
`width` int(10) DEFAULT NULL,
`stock` int(10) unsigned NOT NULL DEFAULT '9999',
`country_iso` varchar(2) DEFAULT NULL,
`amount_usd` decimal(10,2) NOT NULL,
`tax_usd` decimal(10,2) NOT NULL DEFAULT '0.00',
`shipping_usd` decimal(10,2) NOT NULL DEFAULT '0.00',
`total_amount_usd` decimal(11,2) NOT NULL DEFAULT '0.00',
`discount_applied` decimal(5,4) NOT NULL DEFAULT '0.0000',
`enabled` tinyint(1) NOT NULL DEFAULT '1',
`hs_code` varchar(20) DEFAULT NULL,
`pickup_address` int(10) unsigned DEFAULT NULL,
`locked` tinyint(1) NOT NULL DEFAULT '0',
`seller_sku` varchar(45) DEFAULT NULL,
`chargeable_weight` decimal(6,3) NOT NULL,
`gross_weight` decimal(6,3) DEFAULT NULL,
`product_weight` decimal(6,3) DEFAULT NULL,
`product_length` int(10) DEFAULT NULL,
`product_width` int(10) DEFAULT NULL,
`product_height` int(10) DEFAULT NULL,
`warehouse` varchar(15) DEFAULT NULL,
`pickup_shipping_usd` decimal(7,2) NOT NULL DEFAULT '0.00',
`seller_fee_usd` decimal(7,2) NOT NULL DEFAULT '0.00',
`fullfilment_usd` decimal(7,2) NOT NULL DEFAULT '0.00',
`seller_id` int(10) unsigned NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `sku_UNIQUE` (`sku`),
KEY `reseller_product_subcategory_idx` (`subcategory_id`),
KEY `seller_products_unique` (`sku`),
KEY `seller_product_address_idx` (`pickup_address`),
CONSTRAINT `reseller_product_subcategory` FOREIGN KEY (`subcategory_id`) REFERENCES `subcategories` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION,
CONSTRAINT `seller_product_address` FOREIGN KEY (`pickup_address`) REFERENCES `merchant_addresses` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
show create table seller_product_languages
CREATE TABLE `seller_product_languages` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON
UPDATE CURRENT_TIMESTAMP,
`seller_product_id` int(10) unsigned NOT NULL,
`name` varchar(255) NOT NULL,
`bullet` text,
`description` text,
`meta_keywords` text,
`lang` varchar(2) NOT NULL,
`description_html` text,
`bullet_html` text,
`default` tinyint(1) NOT NULL DEFAULT '0',
PRIMARY KEY (`id`),
UNIQUE KEY `index3` (`seller_product_id`,`lang`),
KEY `fk_seller_product_languaje_seller_products1_idx`
(`seller_product_id`),
CONSTRAINT `fk_seller_product_languaje_seller_products1` FOREIGN
KEY (`seller_product_id`) REFERENCES `seller_products` (`id`) ON
DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
我在 config/database.php 文件中解决了这个问题，'mysql' 数组：
它在：
'mysql' => [
...
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
...
],
然后我将其更改为：
'mysql' => [
...
'charset' => 'utf8',
'collation' => 'utf8_general_ci',
...
],
我在处理包含 ñ,é 的 CSV 以及所有这些非 ASCII 字符并将这些词保存在 MySQL 中时遇到了很多问题。
为了解决这个问题，我创建了一个 CSV 文件，在一个单元格中包含以下数据：
iphonée@3,;= ÑÑñe x
我知道，如果我能保存这个词，我就会解决问题。
问题是，当我处理 CSV 时，我得到这个单元格
b"iphonée@3,;= ÑÑñe x"
二进制字符串！！.因此，当我使用此数据在我的数据库中执行 select 时，出现此错误：
QueryException {#1695
#sql: "select * from `seller_product_languages` where `seller_product_id` = ? and `lang` = ? and `name` = ? and `description` = ? and `description_html` = ? and `bullet_html` is null and `bullet` = ? and `meta_keywords` is null limit 1"
#bindings: array:6 [
0 => 102
1 => "es"
2 => b"iphonée@3,;= ÑÑñe x"
3 => "negro"
4 => "negro"
5 => ""
]
#message: b"SQLSTATE[HY000]: General error: 1267 Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '=' (SQL: select * from `seller_product_languages` where `seller_product_id` = 102 and `lang` = es and `name` = iphonée@3,;= ÑÑñe x and `description` = negro and `description_html` = negro and `bullet_html` is null and `bullet` = and `meta_keywords` is null limit 1)"
#code: "HY000"
#file: "/home/vagrant/Code/...../vendor/laravel/framework/src/Illuminate/Database/Connection.php"
#line: 664
-previous: PDOException {#1694
#message: "SQLSTATE[HY000]: General error: 1267 Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '='"
#code: "HY000"
#file: "/home/vagrant/Code/..../vendor/laravel/framework/src/Illuminate/Database/Connection.php"
#line: 330
+errorInfo: array:3 [
0 => "HY000"
1 => 1267
2 => "Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8mb4_unicode_ci,COERCIBLE) for operation '='"
我的列类型是VARCHAR(255)，但我也使用TEXT类型。
所以，如果我不在我的字符串上使用非 ASCII 字符，我会得到一个普通字符串（不是二进制字符串）并且我可以完美地保存它。问题是当我添加 Ñéá 或任何奇怪的字符时，我得到一个二进制字符串，而该二进制字符串使我的数据库崩溃。
我看了看，所有 seller_product_languages 列都是 UTF-8，默认排序规则。
事情是这样的：
如何将二进制字符串转换为普通字符串？我如何才能检测到该字符串是二进制字符串以便进行此转换？
这是我唯一想到的解决办法，如果你认为你有另一个，我将不胜感激。
P.S.: 我最接近解决方案的方法是：
$arr = unpack("a*",$binary_string);
但我只得到 ASCII 字符：
$arr[1] =iphon�e@3,;= ���e x
环境：
- PHP 7.2
- Laravel 5.5
- 阿帕奇
- Ubuntu 18.04
SHOW VARIABLES LIKE 'c%' character_set_client utf8 character_set_connection utf8 character_set_database utf8 character_set_filesystem binary character_set_results utf8 character_set_server latin1 character_set_system utf8 character_sets_dir /usr/share/mysql/charsets/ check_proxy_users OFF collation_connection utf8_general_ci collation_database utf8_general_ci collation_server latin1_swedish_ci completion_type NO_CHAIN concurrent_insert AUTO connect_timeout 10 core_file OFF
show create table seller_products;
CREATE TABLE `seller_products` (
`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
`created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
`subcategory_id` int(10) unsigned NOT NULL,
`subcategory_name` varchar(45) NOT NULL,
`name` varchar(255) DEFAULT NULL,
`description` text CHARACTER SET utf8 COLLATE utf8_unicode_ci,
`sku` varchar(45) NOT NULL,
`brand` varchar(45) DEFAULT NULL,
`weight` int(10) DEFAULT NULL,
`height` int(10) DEFAULT NULL,
`length` int(10) DEFAULT NULL,
`width` int(10) DEFAULT NULL,
`stock` int(10) unsigned NOT NULL DEFAULT '9999',
`country_iso` varchar(2) DEFAULT NULL,
`amount_usd` decimal(10,2) NOT NULL,
`tax_usd` decimal(10,2) NOT NULL DEFAULT '0.00',
`shipping_usd` decimal(10,2) NOT NULL DEFAULT '0.00',
`total_amount_usd` decimal(11,2) NOT NULL DEFAULT '0.00',
`discount_applied` decimal(5,4) NOT NULL DEFAULT '0.0000',
`enabled` tinyint(1) NOT NULL DEFAULT '1',
`hs_code` varchar(20) DEFAULT NULL,
`pickup_address` int(10) unsigned DEFAULT NULL,
`locked` tinyint(1) NOT NULL DEFAULT '0',
`seller_sku` varchar(45) DEFAULT NULL,
`chargeable_weight` decimal(6,3) NOT NULL,
`gross_weight` decimal(6,3) DEFAULT NULL,
`product_weight` decimal(6,3) DEFAULT NULL,
`product_length` int(10) DEFAULT NULL,
`product_width` int(10) DEFAULT NULL,
`product_height` int(10) DEFAULT NULL,
`warehouse` varchar(15) DEFAULT NULL,
`pickup_shipping_usd` decimal(7,2) NOT NULL DEFAULT '0.00',
`seller_fee_usd` decimal(7,2) NOT NULL DEFAULT '0.00',
`fullfilment_usd` decimal(7,2) NOT NULL DEFAULT '0.00',
`seller_id` int(10) unsigned NOT NULL,
PRIMARY KEY (`id`),
UNIQUE KEY `sku_UNIQUE` (`sku`),
KEY `reseller_product_subcategory_idx` (`subcategory_id`),
KEY `seller_products_unique` (`sku`),
KEY `seller_product_address_idx` (`pickup_address`),
CONSTRAINT `reseller_product_subcategory` FOREIGN KEY (`subcategory_id`) REFERENCES `subcategories` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION,
CONSTRAINT `seller_product_address` FOREIGN KEY (`pickup_address`) REFERENCES `merchant_addresses` (`id`) ON DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
show create table seller_product_languages
CREATE TABLE `seller_product_languages` (
`id` int(10) NOT NULL AUTO_INCREMENT,
`created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
`updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON
UPDATE CURRENT_TIMESTAMP,
`seller_product_id` int(10) unsigned NOT NULL,
`name` varchar(255) NOT NULL,
`bullet` text,
`description` text,
`meta_keywords` text,
`lang` varchar(2) NOT NULL,
`description_html` text,
`bullet_html` text,
`default` tinyint(1) NOT NULL DEFAULT '0',
PRIMARY KEY (`id`),
UNIQUE KEY `index3` (`seller_product_id`,`lang`),
KEY `fk_seller_product_languaje_seller_products1_idx`
(`seller_product_id`),
CONSTRAINT `fk_seller_product_languaje_seller_products1` FOREIGN
KEY (`seller_product_id`) REFERENCES `seller_products` (`id`) ON
DELETE NO ACTION ON UPDATE NO ACTION
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
我在 config/database.php 文件中解决了这个问题，'mysql' 数组：
它在：
'mysql' => [
...
'charset' => 'utf8mb4',
'collation' => 'utf8mb4_unicode_ci',
...
],
然后我将其更改为：
'mysql' => [
...
'charset' => 'utf8',
'collation' => 'utf8_general_ci',
...
],