Summary of three methods to delete directories using rmdir under PHP_PHP Tutorial

1. Recursive method: Use recursion to delete layer by layer.

Copy code The code is as follows:

deleteDir(＄dir)
{
if (rmdir (＄dir)==false && is_dir(＄dir)) {
if (＄dp = opendir(＄dir)) {
while ((＄file=readdir(＄dp)) != false) {
if (is_dir(＄file) && ＄file!='.' && ＄file!='..') {
deleteDir(＄file);
} else {
unlink(＄ file);
}  
}  
closedir(＄dp); 🎜>


2. System call method

Copy code The code is as follows:

function del_dir(＄dir) { if(strtoupper(substr(PHP_OS, 0, 3)) == 'WIN') {  ＄str = "rmdir /s/q " .＄dir ;

} else {

＄str = "rm -Rf " . ＄dir;
}
}



3. Round-robin method

Copy code The code is as follows:

function deltree(＄pathdir)
{
echo ＄pathdir;//Used for debugging
if(is_empty_dir(＄pathdir))//If it is empty
{
rmdir(＄pathdir); //Delete directly
}
else
{//Otherwise read this directory, except . and ..
＄d=dir(＄pathdir);
while(＄a=＄d->read())
{ if(is_file(＄pathdir.'/'.＄a) && (＄a!='.') && ( ＄a!='..')){unlink(＄pathdir.'/'.＄a);}                                                                                               ＄a) && (＄a!='.') && (＄a!='..'))                                                                                                        a)) // Is it empty?
{//If not, call itself, which is just the original path + its subordinate directory name ; 🎜> } 
      }                                                                                          } 
function is_empty_dir(＄pathdir)                                                                                                  a=readdir(＄d))                                                                  return true;
}






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1. Recursive method: Use recursion to delete layer by layer. Copy the code as follows: deleteDir(＄dir) { if(rmdir(＄dir)==falseis_dir(＄dir)){ if(＄dp=opendir(＄dir)){ while((＄file=r...