在运行将大数据导入mysql的PHP脚本时,遇到以下错误:
memory exhausted near ''$GPGGA','130735.000','60.15751','N','24.74303','E','1','05','1.6','8.7','M','35' at line 1
我之前有过,在我的PHP INI文件中分配了256M的内存限制。到目前为止,这种记忆已经足够我的信号,直到现在我都没有遇到任何问题。我导入了大小为1MB和2.84MB的文件,同时将内存限制保持在256MB。当我运行大约1MB的文本文件时发生错误。
我假设错误所引用的内存是PHP内存限制。可以设置任何其他内存限制吗?我会很感激解决这个问题的一些建议。非常感谢。
新修改
...
...
if (is_array($inFile)) {
foreach($inFile as $inFileName) {
$newFilePath = $upload_directory."/".$inFileName;
if($inFileName != "")
$handle = fopen($newFilePath,"r");
$numlines =1;
$query = "INSERT INTO gga_raw_data(device_id, gga_date, nmea, gga_time, latitude, north, longitude, east, fixed_quality, no_of_satelites, hdop, altitude, meters, height_of_geoid, metres, check_sum, test_case_id) values";
while (($data = fgetcsv($handle)) !== FALSE)
{
$numlines++;
$myDay=substr($data[1], 0,2);
$myMonth=substr($data[1], 2,2);
$myYear=substr($data[1], 4,2);
$gga_date = convertToNiceDate($myDay, $myMonth, 2000+$myYear);
$longitude = convertToDegrees($data[6]);
$latitude = convertToDegrees($data[4]);
if (!isset($data[16])) {
$data[16] = '';
}
$query .="('$data[0]','$gga_date','$data[2]','$data[3]','$latitude','$data[5]','$longitude','$data[7]','$data[8]','$data[9]','$data[10]','$data[11]','$data[12]','$data[13]','$data[14]', '$data[15]', '$data[16])',";
}
$query = substr($query, 0,-1);
我不想开始一个新问题,因为它仍然在这个问题上。 我已经解决了“内存耗尽”问题,但现在有一个mySQL查询错误让我的生活变得非常悲惨,我需要帮助。
这是我从文本文件中输入数据的示例:
1,070610,$GPGGA,080323.460,6013.45368,N,02445.28396,E,1,04,4.6,18.3,M,35.0,M,,*67
1,070610,$GPGGA,080327.000,6013.44424,N,02445.31214,E,1,05,1.9,30.8,M,35.0,M,,*66
这是echo $ query:
的结果INSERT INTO gga_raw_data(device_id, gga_date, nmea, gga_time, latitude, north, longitude, east, fixed_quality, no_of_satelites, hdop, altitude, meters, height_of_geoid, metres,check_sum) values('1','2010,06,07','$GPGGA','080323.460','60.22423','N','24.75473','E','1','04','4.6','18.3','M','35.0','M','')('1','2010,06,07','$GPGGA','080327.000','60.22407','N','24.7552','E','1','05','1.9','30.8','M','35.0','M','')
)('1','2010,06,07','$GPGGA','053416.000','0','','0','','0','','','','','','','')('1','2010,06,07','$GPGGA','053431.000','0','','0','','0','','','','','','','')('1','2010,06,07','$GPGGA','062929.000','0','','0','','0','','','','','','','')('1','2010,06,07','$GPGGA','080250.000','0','','0','','0','','','','','','','')('1','2010,06,07','$GPGGA','080305.000','0','','0','','0','','','','','','','')('1','2010,06,07','$GPGGA','080305.000','0','','0','','0','','','','','','','')('1','2010,06,07','$GPGGA','080320.000','0','','0','','0','','','','','','','')
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '('1','2010,06,07','$GPGGA','080327.000','60.22407','N','24.7552','E','1','05','1' at line 1
我注意到,查询没有解析输入数据中的最后一个变量“* 67”。我不确定它是否被识别,因为它始于*。
答案 0 :(得分:2)
一次插入一行或将它们分批插入,例如每次50行......
$gen_query=$query; // keep $query as the stub
while (($data = fgetcsv($handle)) !== FALSE)
{
$numlines++;
...
$gen_query .="('$data[0]','$gga_date','$data[2]','$data[3]','$latitude','$data[5]','$longitude','$data[7]','$data[8]','$data[9]','$data[10]','$data[11]','$data[12]','$data[13]','$data[14]', '$data[15]', '$data[16])',";
if ($numlines % 50 == 0) {
mysql_query(substr($gen_query,0,-1));
$gen_query=$query;
}
}
if ($gen_query!=$query) mysql_query(substr($gen_query,0,-1));
答案 1 :(得分:0)
你可以在php.ini中设置其他限制,例如最大帖子大小,最大上传大小等等。但是这个错误看起来像是由于其他原因。在阅读上传的文件后,你是在构建真正大的对象[在php中,很可能是数组]吗?昨晚我遇到了类似的问题,我所要做的就是增加php.ini中的内存限制。
当我之前遇到此问题而没有增加内存限制的选项时,我不得不重写我的代码,以便这么多对象不会同时存储在内存中。你能发一些代码吗?