Three ways to read file content in PHP (transfer)_PHP tutorial

PHP reads file content:

1. //**************The first reading method************************ **********
2. header("content-type:text/html;charset=utf-8"); 
3. //File path
4. $file_path="text.txt"; 
5. //Determine whether this file exists
6. if(file_exists($file_path)){ 
7. if($fp=fopen($file_path,"a+")){ 
8. //Read file
9. $conn=fread($fp, filesize($file_path));
10. //Replacement string
11. $conn=str_replace("rn","
    ",$conn); 
12. echo $conn."
    ";
13. }else{ 
14. echo "The file cannot be opened"; 
15. } 
16. }else{ 
17. echo "No such file";
18. } 
19. fclose($fp);
22. //************************Second reading method****************** *************
23. header("content-type:text/html;charset=utf-8"); 
24. //File path
25. $file_path="text.txt"; 
26. $conn=file_get_contents($file_path); >
27. $conn=str_replace("rn","
    ",file_get_contents($file_path));
28. echo $conn; 
29. fclose($fp);
32. //******************The third reading method, loop reading****************** ******
33. header("content-type:text/html;charset=utf-8"); 
34. //File path
35. $file_path="text.txt"; 
36. //Determine whether the file exists
37. if(file_exists($file_path)){ 
38. //Determine whether the file can be opened
39. if($fp=fopen($file_path,"a+")){ 
40. $buffer=1024;
41. //Judge whether you have reached the end of the file while reading
42. $str=""; 
43. while(!feof($fp)){ 
44. $str.=fread($fp,$buffer);
45. } 
46. }else{ 
47. echo "File cannot be opened";
48. } 
49. }else{ 
50. echo "No such file";
51. } 
52. //Replacement characters
53. $str=str_replace("rn","
    ",$str); 
54. echo $str; 
55. fclose($fp);
56. Function to read INI configuration file:
57. $arr=parse_ini_file("config.ini") ; 
58. //Returns an array
59. echo $arr['host']."
    "; 
60. echo $arr['username']."
    "; 
61. echo $arr['password']."
    "; 

Reference link:

Code for php to read file content into string and process it
Learn how to read file content in php

http://www.bkjia.com/PHPjc/729832.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/729832.htmlTechArticlephp reads file content: //**************First A reading method**************************** header( "content-type:text/html;charset=utf-8" ); //File path $file_path = "text.txt" ;...