PHP operation csv file code explanation _ PHP Tutorial

PHP operation csv file code details. There are many ways to read and operate csv files in php. The simplest way is to directly open the txt file using the fopen image, and then press and separate it using explode, there are many ways to directly use php to read and operate csv files. The simplest way is to directly use fopen to open a txt file, and then use explode to press and separate the file, similarly, you can directly use a, B, c, and e to save them as KO Files in csv format. However, php also provides the fputcsv function for csv file operations. I will introduce it below.

1. generate CVS, fputcsv () format the rows as CSV and write the file pointer

The code is as follows:
$ List = array ( 'AAA, bbb, ccc, dddd ', '11, 22, 33 ', '"Php", "java "' ); $ Fp = fopen('file.csv ', 'w '); Foreach ($ list as $ line ){ Fputcsv ($ fp, explode (',', $ line )); } Fclose ($ fp ); ?>

Tips: If your csv file contains Chinese characters, you need to pay attention to Chinese characters. Otherwise, Chinese characters may be garbled with you. here is an example to solve Chinese garbled characters.

The code is as follows:

/** By www. bKjia. c0m */ $ Row = 1; $ Handle = fopen ("file.csv", "r "); // Fgetcsv () parses the read rows, finds fields in CSV format, and returns an array containing these fields. While ($ data = fgetcsv ($ handle, 1000 ,",")){ $ Num = count ($ data ); Echo" $ Num fields in line $ row: N "; $ Row ++; For ($ c = 0; $ c <$ num; $ c ++ ){ // Pay attention to Chinese garbled characters $ Data [$ c] = iconv ("gbk", "UTF-8 // IGNORE", $ data [$ c]); Echo $ data [$ c]." N "; } } Fclose ($ handle ); ?>

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 ." "; } ?>

And separate them to generate them directly...