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PHP directory operations

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Jul 25, 2016 am 08:42 AM
php directory operation
  2. //basename()
  3. Return the file name part of the path
  4. $path="D:/lamp/apache2/htdocs/file.php";
  5. echo basename($path). "
    ";
  6. //Display the file name with the file extension
  7. echo basename($path,'php')."
    ";
  8. //Display the file name without the file extension
  9. //dirname()
  10. Remove the file name and return the directory name
  11. echo dirname($path)."
    ";
  12. //Return the directory name
  13. //pathinfo()
  14. Return an array of path attributes
  15. print_r(pathinfo($path))."
    ";
  16. //opendir()
  17. Open the specified directory
  18. //readdir()
  19. Read the specified directory
  20. //closedir()
  21. Close the specified directory
  22. //rewinddir()
  23. Rewind the directory handle
  24. /*
  25. *The following code is used to count the files in a directory
  26. */
  27. $num=0;
  28. //It is used to count the total number of subdirectories and files
  29. $dirname="pm3";
  30. //Define a directory, that is, the directory that needs to be traversed
  31. $dir_handle=opendir($dirname);
  32. //Open the directory
  33. //Output the traversed content and file names in table format
  34. echo "";
  35. echo "
    36. ";
  36. echo "
    37. ";
  37. echo "
    38. ";
  38. while($file=readdir($ dir_handle)){
  39. //Loop through the contents of the directory until the end
  40. $dirFile=$dirname."/".$file;
  41. //Link the directory name and file name so that it can be used in the following filetype
  42. if($num++%2==0){
  43. //Realize interlaced colors through singular and plural numbers
  44. $bgcolor="#ffffff";
  45. }else{
  46. $bgcolor="#cccccc";
  47. }
  48. echo "< ;tr bgcolor='".$bgcolor."'>";
  49. echo "
    50. ";
  50. //Output file name
  51. echo "
    52. ";
  52. //Output file size
  53. echo "
    54. ";
  54. //Output file type
  55. echo "
    56. ";
  56. //Output the modification time of the file
  57. echo "
    58. ";
  58. }
  59. echo "closedir($dir_handle);
  60. echo "There are ".$num." files in the directory ".$dirname."
    ";
  61. //disk_free_space ()
  62. disk_total_space() Count disk size
  63. /*
  64. *Customize a recursive function to count the size of incoming directory files
  65. */
  66. function dirSize($directory){
  67. $dir_size=0;
  68. //Define an integer Variable, used to accumulate the size of each file to calculate the size of the directory
  69. if($dir_handle=opendir($directory)){
  70. //Open the directory
  71. while($fileName=readdir($dir_handle)){
  72. // Loop through the files in the directory
  73. if($fileName!="." && $fileName!=".."){
  74. //Be sure to exclude two special directories
  75. $subFile=$directory."/" .$fileName;
  76. //Connect the file name and directory name
  77. if(is_dir($subFile)){
  78. //Determine whether the sub-file is a directory
  79. $dir_size+=dirSize($subFile);
  80. //If it is a directory, continue Loop downward
  81. }
  82. if(is_file($subFile)){
  83. //Determine whether it is a normal file
  84. $dir_size+=filesize($subFile);
  85. //Get the size of the file and add it to the previous file size
  86. }
  87. }
  88. }
  89. }
  90. closedir($dir_handle);
  91. //The handle of the closed directory
  92. return $dir_size;
  93. }
  94. $dir_size=dirSize("pm3");
  95. echo "The size of directory pm3 is:".round ($dir_size/pow(1024,2),2)."MB";
  96. //The size of the output directory
  97. /*
  98. *Customize a recursive function to delete the directory
  99. */
  100. //unlink()
  101. Unlink()
  102. Delete the files in
  103. function delDir($directory){
  104. if(file_exists($directory)){
  105. //Determine whether the directory exists
  106. if($dir_handle=opendir($directory)){
  107. //Open the directory
  108. while ($fileName=readdir($dir_handle)){
  109. //Loop to read files in the directory
  110. if($fileName!="." && $fileName!=".."){
  111. //Be sure to exclude two Special file, otherwise you will regret it
  112. $subFile=$directory."/".$fileName;
  113. //Connect the file name and directory name
  114. if(is_dir($subFile)){
  115. //If it is a directory, continue The execution itself
  116. delDir($subFile);
  117. }
  118. if(is_file($subFile)){
  119. //If it is an ordinary file, delete it directly
  120. unlink($subFile);
  121. }
  122. }
  123. }
  124. closedir($dir_handle) ;
  125. //Close the handle
  126. rmdir($directory);
  127. //The directory you run here is already an empty directory, delete it directly
  128. }
  129. }🎜}
  130. //delDir("pm4");
  131. /*
  132. *Customize a recursive function to copy or move a directory
  133. */
  134. //copy()
  135. Copy an ordinary file
  136. //mkdir()
  137. Create a directory
  138. function copyDir($directory,$dirTo){
  139. //Two parameters, one is the source directory and the other is the target directory
  140. if(is_file($dirTo)){
  141. //Judge if the target is an ordinary file, then directly Exit method
  142. echo "The target is not a directory and the copy cannot be completed";
  143. return;
  144. }
  145. if(!file_exists($dirTo)){
  146. //Judge if the directory does not exist, then create the directory
  147. mkdir($dirTo) ;
  148. }
  149. if($dir_handle=opendir($directory)){
  150. while($fileName=readdir($dir_handle)){
  151. if($fileName!="." && $fileName!=".."){
  152. $subFile=$directory."/".$fileName;
  153. $subToFile=$dirTo."/".$fileName;
  154. if(is_dir($subFile)){
  155. copyDir($subFile,$subToFile);
  156. }
  157. if(is_file($subFile)){
  158. copy($subFile,$subToFile);
  159. }
  160. }
  161. }
  162. closedir($dir_handle);
  163. }
  164. }
  165. copyDir("pm3","pm4");
  166. ?>
  167. Copy code

    168. Directory".$dirname. "Content under
    File nameFile sizeFile typeModification time
    ".$file." " .filesize($dirFile)." ".filetype($dirFile)." ".filemtime($dirFile)."
    PHP


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