首先,我想你应该知道 SQL 支持多种类型的单/双引号字符串:
'Northwind\'s category name'
'Northwind''s category name'
"Northwind \"category\" name"
"Northwind ""category"" name"
"Northwind category's name"
'Northwind "category" name'
'Northwind \\ category name'
'Northwind \ncategory \nname'
要匹配它们,请尝试以下模式:
"[^\\"]*(?:(?:\\.|"")[^\\"]*)*"
'[^\\']*(?:(?:\\.|'')[^\\']*)*'
将模式组合在一起:
VALUES\s*\(\s*(?:"[^\\"]*(?:(?:\\.|"")[^\\"]*)*"|'[^\\']*(?:(?:\\.|'')[^\\']*)*'|\w+)(?:\s*,\s*(?:"[^\\"]*(?:(?:\\.|"")[^\\"]*)*"|'[^\\']*(?:(?:\\.|'')[^\\']*)*'|\w+))*\)
PHP5.4.5示例代码:
<?php
$pat = '/\bVALUES\s*\((\s*(?:"[^\\"]*(?:(?:\\.|"")[^\\"]*)*"|\'[^\\\']*(?:(?:\\.|\'\')[^\\\']*)*\'|\w+)(?:\s*,\s*(?:"[^\\"]*(?:(?:\\.|"")[^\\"]*)*"|\'[^\\\']*(?:(?:\\.|\'\')[^\\\']*)*\'|\w+))*)\)/';
$sql_sample1 = "INSERT INTO tabla (a, b,c,d) VALUES ('a','b','c',a,b)";
if( preg_match($pat, $sql_sample1, $matches) > 0){
printf("%s\n", $matches[0]);
printf("%s\n\n", $matches[1]);
}
$sql_sample2 = 'INSERT INTO tabla (a, b,c,d) VALUES (\'a\',\'{a:b, "asd":"ads"}\',\'c\',a,b)';
if( preg_match($pat, $sql_sample2, $matches) > 0){
printf("%s\n", $matches[0]);
printf("%s\n", $matches[1]);
}
?>
输出:
VALUES ('a','b','c',a,b)
'a','b','c',a,b
VALUES ('a','{a:b, "asd":"ads"}','c',a,b)
'a','{a:b, "asd":"ads"}','c',a,b
如果您需要从结果中获取每个值,请拆分,
(如解析 CSV)
我希望这能帮到您 :)