Question

$sqlL = '';
$Allel = '';
foreach($arr as $el){
    $AllUrl .= ",'".addslashes($el)."'";
    $sqlL .= "INSERT INTO Table (ID, Seet, Column) VALUES ('4', '$Seet', '$el');";
}

        $AllUrl = substr($Allel, 1); //delete first comma
        $sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN($Allel);";

结果我们得到下一个$sqlL：

DELETE FROM Table WHERE ID= '4' AND URL NOT IN(house, test, test test);

但是不对，这不会奏效。

请告诉我如何在$Allel中添加引号？

P.S。：我想得到下一个查询：

DELETE FROM Table WHERE ID= '4' AND URL NOT IN('house', 'test', 'test test');

Answer 1

试试这个：

$sqlL = '';

foreach($arr as $el){
    $sqlL .= "INSERT INTO Table (ID, Seet, Column) VALUES ('4', '$Seet', '$el');";
}

$AllUrl = "'".implode("','",$arr)."'";
$sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN($AllUrl);";

Answer 2

这只有一个答案...使用预处理语句，不使用字符串函数和“手工”引号和东西构建自己的查询。这是有风险的，与清洁程序相反。

反正：

如果$Allel包含纯值，请使用

$Allel = array_map(function($v) { return "'" . $v . "'"; }, $Allel);
$Allel = implode(', ', $Allel);

第一行将'包围值，第二行将使用,连接。

Answer 3

我认为他想要一些不同的东西，你能尝试一下吗？

implode("', '", $array);

和sql

$sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN('".$Allel."');";

Answer 4

虽然使用数组和内爆可能是最好的解决方案，但代码的问题是你用引号设置一个变量，然后在SQL中添加一个不同的变量： -

$sqlL = '';
foreach($arr as $el)
{
    $AllUrl .= ",'".addslashes($el)."'";
    $sqlL .= "INSERT INTO Table (ID, Seet, Column) VALUES ('4', '$Seet', '$el');";
}

$AllUrl = substr($AllUrl, 1); //delete first comma
$sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN($AllUrl);";

要使用implode，将项添加到数组（忽略逗号），然后在DELETE语句的最终赋值中使用分隔逗号将该数组内爆： -

$sqlL = '';
foreach($arr as $el)
{
    $AllUrl[] = "'".addslashes($el)."'";
    $sqlL .= "INSERT INTO Table (ID, Seet, Column) VALUES ('4', '$Seet', '$el');";
}

$sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN(".implode(',', $AllUrl).");";

您应该使用mysql_real_escape_string或等效字符串转义字符串。不确定您正在使用哪些数据库驱动程序，所以尽管不推荐使用mysql_ *驱动程序，但它们可以作为示例： -

$sqlL = '';
foreach($arr as $el)
{
    $AllUrl[] = "'".mysql_real_escape_string($el)."'";
    $sqlL .= "INSERT INTO Table (ID, Seet, Column) VALUES ('4', '$Seet', '$el');";
}

$sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN(".implode(',', $AllUrl).");";

Answer 5

您可以使用PHP implode()函数

<?php
implode(', ', $array);

PHP Documentation

Answer 6

您可以使用内爆功能，

$array = array('lastname', 'email', 'phone');
$comma_separated = implode(",", $array);

参见下面的示例

$array = array("1","2","3");
echo "Array is: ".implode(",",$array );

Array is: 1,2,3

Answer 7

试试这个

$sqlL = '';
$Allel = '';

$arr_Allel = array();
foreach($arr as $el){
    $arr_Allel[] = ",'".addslashes($el)."'";
    $sqlL .= "INSERT INTO Table (ID, Seet, Column) VALUES ('4', '$Seet', '$el');";
}

$Allel = implode(",", $arr_Allel);

$sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN($Allel);";

Answer 8

试试这个：

<?php 

foreach($arr as $el){
    $AllUrl .= "'".addslashes($el)."' "; // Add items between spaces
}

$AllUrl_ = explode(" ",$AllUrl);
$AllUrlFinal = implode(",", $AllUrl_ ); // Change spaces by commas
$AllUrlFinal=trim($AllUrlFinal, ","); // would cut trailing and prefixing commas.
$sqlL .= "DELETE FROM Table WHERE ID= '4' AND URL NOT IN($AllUrlFinal);";

PHP如何添加引号？

8 个答案: