Question

我有sql语句作为字符串;

a = "insert into table1 values('value1','value2','value3')"
b = "insert into table2 values('value4','value5','value6')"
c = "insert into table3 values('value7','value8','value9')"

我需要分割它们的函数，并在语句中给出第一个值（PHP 5.6）

a = splitFunction("insert into table1 values('value1','value2','value3')")//a ='value1'
b = splitFunction("insert into table2 values('value4','value5','value6')")//b='value4'
c = splitFunction("insert into table3 values('value7','value8','value9')")//c='value7'

Answer 1

您可以尝试以下代码：

$a = "insert into table1 values('value1','value2','value3')";
preg_match("#values\('([^']*)'#", $a, $res);
$a_value = $res[1];
var_dump($a_value);

尝试此代码（Ctrl + ENTER）：http://www.tehplayground.com/#s8l9tArRr

Answer 2

查看下面的代码，它将返回所需的结果：

function splitFunction($str)
{
    $patterh = '~\'(.*?)\'~';
    preg_match($patterh, $str, $matches);
    return (isset($matches[1])) ? $matches[1]:'no match';
}

echo splitFunction("insert into table1 values('value1','value2','value3')"); //output: value1
echo splitFunction("insert into table1 values('value4','value2','value3')"); //output: value4
echo splitFunction("insert into table1 values('value6','value2','value3')"); //output: value6
echo splitFunction("insert into table1"); //output: no match

得到一个字符串的特定部分

2 个答案: