這是我的解決方案。 它的作品,如果你知道你期望多少列。 最後,分隔符是在手動
actual_separation_character
$separator_1=",";
$separator_2=";";
$separator_3="\t";
$separator_4=":";
$separator_5="|";
$separator_1_number=0;
$separator_2_number=0;
$separator_3_number=0;
$separator_4_number=0;
$separator_5_number=0;
/* YOU NEED TO CHANGE THIS VARIABLE */
// Expected number of separation character (3 colums ==> 2 sepearation caharacter/row)
$expected_separation_character_number=2;
$file = fopen("upload/filename.csv","r");
while(! feof($file)) //read file rows
{
$row= fgets($file);
$row_1_replace=str_replace($separator_1,"",$row);
$row_1_length=strlen($row)-strlen($row_1_replace);
if(($row_1_length==$expected_separation_character_number)or($expected_separation_character_number==0)){
$separator_1_number=$separator_1_number+$row_1_length;
}
$row_2_replace=str_replace($separator_2,"",$row);
$row_2_length=strlen($row)-strlen($row_2_replace);
if(($row_2_length==$expected_separation_character_number)or($expected_separation_character_number==0)){
$separator_2_number=$separator_2_number+$row_2_length;
}
$row_3_replace=str_replace($separator_3,"",$row);
$row_3_length=strlen($row)-strlen($row_3_replace);
if(($row_3_length==$expected_separation_character_number)or($expected_separation_character_number==0)){
$separator_3_number=$separator_3_number+$row_3_length;
}
$row_4_replace=str_replace($separator_4,"",$row);
$row_4_length=strlen($row)-strlen($row_4_replace);
if(($row_4_length==$expected_separation_character_number)or($expected_separation_character_number==0)){
$separator_4_number=$separator_4_number+$row_4_length;
}
$row_5_replace=str_replace($separator_5,"",$row);
$row_5_length=strlen($row)-strlen($row_5_replace);
if(($row_5_length==$expected_separation_character_number)or($expected_separation_character_number==0)){
$separator_5_number=$separator_5_number+$row_5_length;
}
} // while(! feof($file)) END
fclose($file);
/* THE FILE ACTUAL SEPARATOR (delimiter) CHARACTER */
/* $actual_separation_character */
if ($separator_1_number==max($separator_1_number,$separator_2_number,$separator_3_number,$separator_4_number,$separator_5_number)){$actual_separation_character=$separator_1;}
else if ($separator_2_number==max($separator_1_number,$separator_2_number,$separator_3_number,$separator_4_number,$separator_5_number)){$actual_separation_character=$separator_2;}
else if ($separator_3_number==max($separator_1_number,$separator_2_number,$separator_3_number,$separator_4_number,$separator_5_number)){$actual_separation_character=$separator_3;}
else if ($separator_4_number==max($separator_1_number,$separator_2_number,$separator_3_number,$separator_4_number,$separator_5_number)){$actual_separation_character=$separator_4;}
else if ($separator_5_number==max($separator_1_number,$separator_2_number,$separator_3_number,$separator_4_number,$separator_5_number)){$actual_separation_character=$separator_5;}
else {$actual_separation_character=";";}
/*
if the number of columns more than what you expect, do something ...
*/
if ($expected_separation_character_number>0){
if ($separator_1_number==0 and $separator_2_number==0 and $separator_3_number==0 and $separator_4_number==0 and $separator_5_number==0){/* do something ! more columns than expected ! */}
}
你總是可以添加其他輸入允許用戶指定分隔符。 – Supericy 2013-02-19 00:56:54
我認爲@Supericy的想法是最好的,這似乎並不像你可以輕易確定的東西,除非你有某種基礎從頭開始。 – 2013-02-19 00:58:24
Duplicate:http://stackoverflow.com/questions/3395267/how-to-find-out-if-csv-file-fields-are-tab-delimited-or-comma-delimited – 2015-12-04 14:53:19