Detailed description of csv file reading based on PHP

This article provides a detailed analysis of the contents of csv files read by PHP. For more information, see Reads data from all rows in a csv file at a time.

The code is as follows:

$ File = fopen('windows_201511s.csv ', 'r ');
While ($ data = fgetcsv ($ file) {// read the contents of a row in the CSV each time.
// Print_r ($ data); // This is an array. to obtain each data, access the array subscript.
$ Goods_list [] = $ data;
}
// Print_r ($ goods_list );
/* Foreach ($ goods_list as $ arr ){
If ($ arr [0]! = ""){
Echo $ arr [0]."
";
}
}*/
Echo $ goods_list [2] [0];
Fclose ($ file );
?>

Reads a row of data from a csv file.

The code is as follows:

Function get_file_line ($ file_name, $ line ){
$ N = 0;
$ Handle = fopen ($ file_name, 'r ');
If ($ handle ){
While (! Feof ($ handle )){
+ + $ N;
$ Out = fgets ($ handle, 4096 );
If ($ line = $ n) break;
}
Fclose ($ handle );
}
If ($ line = $ n) return $ out;
Return false;
}
Echo get_file_line ("windows_201511s.csv", 10 );
?>

Read csv files to specify the number of rows (row interval)

The code is as follows:

Function get_file_line ($ file_name, $ line_star, $ line_end ){
$ N = 0;
$ Handle = fopen ($ file_name, "r ");
If ($ handle ){
While (! Feof ($ handle )){
+ + $ N;
$ Out = fgets ($ handle, 4096 );
If ($ line_star <= $ n ){
$ Ling [] = $ out;
}
If ($ line_end = $ n) break;
}
Fclose ($ handle );
}
If ($ line_end = $ n) return $ ling;
Return false;
}
$ Aa = get_file_line ("windows_201511s.csv", 11, 20); // from 11th rows to 20th rows
Foreach ($ aa as $ bb ){
Echo $ bb ."
";
}
?>

In addition, you can find two methods on the Internet (I don't know whether to enable them)

The code is as follows:

$ Handle = fopen ("1.csv"," r ");
While (! Feof ($ handle )){
$ Buffer = fgetss ($ handle, 2048 );
$ Data = explode (",", $ buffer );
$ Num = count ($ data );
For ($ I = 0; $ I <$ num; $ I ++ ){
Print_r ($ data );
}
}
?>

The code is as follows:

$ Handle = fopen ("1.csv"," r ");
$ Row = 1;
While ($ data = fgetcsv ($ handle, 1000 ,",")){
$ Num = count ($ data );
For ($ I = 0; $ I <$ num; $ I ++ ){
Echo $ data [$ I];
}
$ Row ++;
}
?>