PHP file and Directory operation example resolution

This article describes the PHP file and directory operations. Share to everyone for your reference, specific as follows:

File directory-related functions

<?php Files in the output directory Functionoutputcurfiles ($allowedtypes, $thedir) { First, we make sure that the directory exists. if (Is_dir ($thedir)) { Now, we use Scandir to scan the files in the directory. $scanarray = Scandir ($thedir); Then we start parsing the array. Scandir () with "." and ".." Statistics file navigation list So as a document, we should not list them. for ($i = 0; $i <count ($scanarray); $i + +) { if ($scanarray [$i]!= "." && $scanarray [$i]!= "...") { Now, check to make sure that this is a file, not a directory. if (Is_file ($thedir.) /". $scanarray [$i])) { Now, because we will allow the client to edit this file, We have to check whether it is readable and writable. if (Is_writable ($thedir.) /". $scanarray [$i]) && is_readable ($thedir." /". $scanarray [$i])) { Now, we check whether the file type exists in the allowed array of types. $thepath =pathinfo ($thedir.) /". $scanarray [$i]); if (In_array ($thepath [' extension '], $allowedtypes)) { If the file complies with the rules, we can continue to output. echo$scanarray[$i]. " <br/> "; } } } } } }else{ echo "Sorry, this directory does not exist." } } $allowedtypes =array ("TXT", "html"); Outputcurfiles ($allowedtypes, "TestFolder"); /////////////////////////////////////////////////// Functionrecurdir ($thedir) { Attempt to open the directory. try{ if ($adir = Opendir ($thedir)) { Scan the directory. while (false!== ($anitem = Readdir ($adir))) { No statistics directory contains "." or ".." of the situation if ($anitem!= "." && $anitem!= "...") { At this point, if it's a directory, indent a little And then go back to the recursive if (Is_dir ($thedir.) /". $anitem)) { ? ><span style= "Font-weight:bold;" Mce_style= "Font-weight:bold;" ><?phpecho$anitem; ></span><?php ? ><div style= "margin-left:10px;" Mce_style= "margin-left:10px;" ><?php Recurdir ($thedir. " /". $anitem); ? ></div><?php }elseif (Is_file ($thedir.) /". $anitem)) { The file is output at this time. Echo$anitem. " <br/> "; } } } }else{ Thrownewexception ("Sorry, directory could not to be openend."); } }catch (exception$e) { Echo$e->getmessage (); } } echo "<br/>/////////////////////////////////////<br/><br/>"; Recurdir ("TestFolder"); ////////////////////////////////////////////////////////////////// echo "<br/>/////////////////////////////////////<br/><br/>"; Functionsortfilesbydate ($thedir) { First, you need to make sure that the directory exists. if (Is_dir ($thedir)) { Next, we use Scandir to scan the files in this directory. $scanarray = Scandir ($thedir); $finalarray =array (); Then start parsing the array Scandir () with "." and ".." Statistics file navigation list So as a document, we should not list them. for ($i = 0; $i <count ($scanarray); $i + +) { if ($scanarray [$i]!= "." && $scanarray [$i]!= "...") { Now we check to make sure that this is a file and not a directory. if (Is_file ($thedir.) /". $scanarray [$i])) { What you need to do now is loop the data to an associative array. $finalarray [$thedir.] /". $scanarray [$i]] =filemtime ($thedir." /". $scanarray [$i]); } } } Now that we've traversed the entire array, all we need to do is asort () it. Asort ($finalarray); return ($finalarray); }else{ echo "Sorry, this directory does not exist." } } We then point the function to the directory that we need to view. $sortedarray = Sortfilesbydate ("TestFolder"); At this point, you can output as follows: while ($element = each ($sortedarray)) { echo "File:". $element [' key ']. "Is last modified:". Date ("F J, Y H:i:s", $element [' value ']). " <br/> "; } ?>