Five ways for PHP to read file content: _ PHP Tutorial

PHP provides five methods to read file content ,. Five ways for PHP to read file content: five ways for php to read file content to share the five methods for php to read file content: Well, after writing it, it is found that all files are not closed. There are five methods for PHP to read file content,

Five methods for php to read file content

Share the following five methods for php to read file content: Well, after writing, I found that all the files are not closed. In actual application, close fclose ($ fp );
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Php reads the file content:

----- Method 1 ----- fread ()--------

<? Php $ file_path = "test.txt"; if (file_exists ($ file_path) {$ fp = fopen ($ file_path, "r"); $ str = fread ($ fp, filesize ($ file_path); // specify the read size. here, the entire file is read. echo $ str = str_replace ("\ r \ n ","
", $ Str) ;}?>

-------- Method 2 ------------

<? Php $ file_path = "test.txt"; if (file_exists ($ file_path) {$ str = file_get_contents ($ file_path ); // read the entire file content into a string $ str = str_replace ("\ r \ n ","
", $ Str); echo $ str ;}?>

----- Method 3 ------------

<? Php $ file_path = "test.txt"; if (file_exists ($ file_path) {$ fp = fopen ($ file_path, "r"); $ str = ""; $ buffer = 1024; // read 1024 bytes each time while (! Feof ($ fp) {// cyclically read until the entire file is read $ str. = fread ($ fp, $ buffer);} $ str = str_replace ("\ r \ n ","
", $ Str); echo $ str ;}?>

------- Method 4 --------------

<? Php $ file_path = "test.txt"; if (file_exists ($ file_path) {$ file_arr = file ($ file_path); for ($ I = 0; $ I
 ";}/* Foreach ($ file_arr as $ value) {echo $ value ."
";} */}?>

---- Method 5 --------------------

<? Php $ file_path = "test.txt"; if (file_exists ($ file_path) {$ fp = fopen ($ file_path, "r"); $ str = ""; while (! Feof ($ fp) {$ str. = fgets ($ fp); // read data row by row. If fgets does not write the length parameter, the default value is 1 k .} $ Str = str_replace ("\ r \ n ","
", $ Str); echo $ str ;}?>

The above content is shared with you five ways PHP can read file content.

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