Question

更新4：

我发现（被怀疑）enconding文件对此负责。我将csv文件从UCS-2 Little Endian转换为UTF-8，一切正常。无论如何，我需要找到一些方法让PHP正确理解输入文件。已经尝试sellocale但没有成功。

---原始问题---

我有一些以'table'格式存储在csv文件中的数据，我希望将这些数据存储为（tag，tagtimestamp，tagvalue）在数据库上。但无法找到将存储在$ v数组中的值转换为整数值的方法：

$p=0;
$tag=array();
$dt=array();
$v=array();

$handle=fopen("sga/2013.10.054.vol2.csv", "r");

while(($row=fgetcsv($handle, 0, "\t"))!==FALSE){
    $num=count($row);
    $num--; // only even collumns
    if($p==0){
        for($c=1; $c<$num; $c+=2){
            array_push($tag, $row[$c]);
        }
    }else{
        array_push($dt, $row[0]);
        for($c=1; $c<$num;$c+=2){
            array_push($v, $row[$c]); // <<< here is my problem
        }
    }
    $p++;
}
fclose($handle);

echo "<pre>";
print_r($v);
echo "</pre>";

回波：

Array(
[0] => 8701
[1] => 5281
[2] => 4341
[3] => 4360
[4] => 8701
[5] => 8239
[6] => 4631
[7] => 4115
[8] => 4123
[9] => 8239
[10] => 8409
[11] => 3978
[12] => 4192
[13] => 4216
[14] => 8409
[15] => 8916
[16] => 3325
[17] => 4444
[18] => 4472
[19] => 8916
[20] => 9550
[21] => 3286
[22] => 4763
[23] => 4789

...

尝试使用

(int)$row[$c], 
intval($row[$c]), 
($row[$c]+0), 
settype($row[$c], "integer")
preg_replace('!\s+!', $row[$c]) // to clean up any messy char...

等...

我使用以下方法插值：

$nv=0;
$sqls="";
foreach ($tag as $kt=>$t){
    foreach($dt as $kd=>$d){
        $f=($kd*5)+$kt;
        $de=explode(" ", $d);
        $d=implode("-", array_reverse(explode("/", $de[0])))." ".$de[1];
        $nv=$v[$f]; // <<<<< here the values must become integers but only returns zeroes
        $sqls.="('$t', '$d', $nv), ";
    }
}

//最终查询在此处设置

    $sql="";
$sql="INSERT IGNORE INTO aducao (tag, tagtime, tagvalue) VALUES "; 
$sqls=rtrim($sqls, ", ");
$sql.=$sqls;
echo $sql;

我的文件是UTF.8，没有BOM格式化。

和CSV文件是制表符（\ t）分开。

无论如何，如果我离开了来自csv的“值”，我的mysql数据库会抛出一个错误，如果我尝试转换这些值就会变为零。

更新

如果未转换值，则为mysql错误。我想这是因为如果我直接在mysql查询浏览器上复制并粘贴sql字符串，则不会发生错误，因此某些类型的“污垢”会进入这些值......

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1

更新2：

var_dump（$ v）显示：

array(3725) { [0]=> string(9) "8701" [1]=> string(9) "5281" [2]=> string(9) "4341" [3]=> string(9) "4360" [4]=> string(9) "8701" [5]=> string(9) "8239" [6]=> string(9) "4631" [7]=> string(9) "4115" [8]=> string(9) "4123" [9]=> string(9) "8239" [10]=> string(9) "8409" [11]=> string(9) "3978" [12]=> string(9) "4192" [13]=> string(9) "4216" [14]=> string(9) "8409" [15]=> string(9) "8916" [16]=> string(9) "3325" [17]=> string(9) "4444" [18]=> string(9) "4472" [19]=> string(9) "8916" [20]=> string(9) "9550" [21]=> string(9) "3286" [22]=> string(9) "4763" [23]=> string(9) "4789" [24]=> string(9) "9550" [25]=> string(11) "11506" [26]=> string(9) "3448" [27]=> string(9) "5738" [28]=> string(9) "5769" [29]=> string(11) "11506" [30]=> string(11) "11287" [31]=> string(9) "3690" [32]=> string(9) "5630" [33]=> string(9) "5656" [34]=> string(11) "11287" [35]=> string(11) "10639" [36]=> string(9) "4329" [37]=> string(9) "5312" [38]=> string(9) "5327" [39]=> string(11) "10639" [40]=> string(11) "11427" [41]=> string(9) "4973" [42]=> string(9) "5704" [43]=> string(9) "5721" [44]=> string(11) "11427" [45]=> string(11) "11688" [46]=> string(9) "5605" [47]=> string(9) "5841" [48]=> string(9) "5847"

更新3：

$ sql输出的一部分

INSERT IGNORE INTO aducao (tag, tagtime, tagvalue) VALUES ('E054_VOL', '2013-10-01 00:00:00', 8701), ('E054_VOL', '2013-10-01 01:00:00', 8239), ('E054_VOL', '2013-10-01 02:00:00', 8409), ('E054_VOL', '2013-10-01 03:00:00', 8916), ('E054_VOL', '2013-10-01 04:00:00', 9550), ('E054_VOL', '2013-10-01 05:00:00', 11506), ('E054_VOL', '2013-10-01 06:00:00', 11287), ('E054_VOL', '2013-10-01 07:00:00', 10639), ('E054_VOL', '2013-10-01 08:00:00', 11427), ('E054_VOL', '2013-10-01 09:00:00', 11688), ('E054_VOL', '2013-10-01 10:00:00', 7973), ('E054_VOL', '2013-10-01 11:00:00', 2067), ('E054_VOL', '2013-10-01 12:00:00', 0), ('E054_VOL', '2013-10-01 13:00:00', 0), ('E054_VOL', '2013-10-01 14:00:00', 0), ('E054_VOL', '2013-10-01 15:00:00', 0), ('E054_VOL', '2013-10-01 16:00:00', 0), ('E054_VOL', '2013-10-01 17:00:00', 137), ('E054_VOL', '2013-10-01 18:00:00', 142), ('E054_VOL', '2013-10-01 19:00:00', 140), ('E054_VOL', '2013-10-01 20:00:00', 169), ('E054_VOL', '2013-10-01 21:00:00', 0), ('E054_VOL', '2013-10-01 22:00:00', 161), ('E054_VOL', '2013-10-01 23:00:00', 9275), ('E054_VOL', '2013-10-02 00:00:00', 7679), ('E054_VOL', '2013-10-02 01:00:00', 8996), ('E054_VOL', '2013-10-02 02:00:00', 9135), ('E054_VOL', '2013-10-02 03:00:00', 9569), ('E054_VOL', '2013-10-02 04:00:00', 10114), ('E054_VOL', '2013-10-02 05:00:00', 10612), ('E054_VOL', '2013-10-02 06:00:00', 10438), ('E054_VOL', '2013-10-02 07:00:00', 10945), ('E054_VOL', '2013-10-02 08:00:00', 11784), ('E054_VOL', '2013-10-02 09:00:00', 12355), ('E054_VOL', '2013-10-02 10:00:00', 12500), ('E054_VOL', '2013-10-02 11:00:00', 12045), ('E054_VOL', '2013-10-02 12:00:00', 12089), ('E054_VOL', '2013-10-02 13:00:00', 12413), ('E054_VOL', '2013-10-02 14:00:00', 13024), ('E054_VOL', '2013-10-02 15:00:00', 13444), ('E054_VOL', '2013-10-02 16:00:00', 12244), ('E054_VOL', '2013-10-02 17:00:00', 10139), ('E054_VOL', '2013-10-02 18:00:00', 8586), ('E054_VOL', '2013-10-02 19:00:00', 8146), ('E054_VOL', '2013-10-02 20:00:00', 8418), ('E054_VOL', '2013-10-02 21:00:00', 8857), ('E054_VOL', '2013-10-02 22:00:00', 9142), ('E054_VOL', '2013-10-02 23:00:00', 9296), ('E054_VOL', '2013-10-03 00:00:00', 10015), ('E054_VOL', '2013-10-03 01:00:00', 9256), ('E054_VOL', '2013-10-03 02:00:00', 9452), ('E054_VOL', '2013-10-03 03:00:00', 11136), ('E054_VOL', '2013-10-03 04:00:00', 110)

Answer 1

查看你的var_dump输出，看起来PHP已经读取了一些不可打印/不可见的字符。这就是为什么你看string(9) "8409"，你可以清楚地知道只有4位而不是9位。

在你的情况下我会做什么：

1）了解值是否正确。

2）使用一些十六进制查看器/编辑器并打开文件以查看实际存在的字符。

3）其中一个解决方案可能只是通过简单的preg_replace('/[^0-9]+/', '', $value);删除所有不需要的（不可见）字符，然后将它们插入到SQL查询中。

Answer 2

以下是将$ v的所有值转换为数字

的方法

Exception in thread "main" java.lang.NoClassDefFoundError: org/opencv/core/Core

at SimpleSample.<clinit>(SimpleSample.java:10)

Caused by: java.lang.ClassNotFoundException: org.opencv.core.Core
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 1 more

php fgetcsv和整数转换（UTF8 x UCS-2 Little Endian）

2 个答案: