LECTURE ECRITURE DANS UN FICHIER DE CONFIGURATION , DONNÉES

<?php

function get_infile ($fileName , $key , $separator = '=' , $commentchar = ';' )
{
  $i=0;
  $buffer = array();
  if ( file_exists ($fileName) ) {
    $p = fopen ($fileName , 'r' ) ;
    if($p) {
      //On charge le fichier en mémoire
      while ( !feof ($p) ) {
        $buffer[$i] = fgets ($p) ;
        $i++;
      }
    fclose($p);
    }
    $bufferlength = count ( $buffer );
    for( $a=0 ; $a < $bufferlength ; $a++ ) {
      $var = explode( $separator  , $buffer[$a] );
      
      if ( count ($var) > 1 )
        if ( $var[0][0] != $commentchar )//On trouve une ligne commentée: on zappe
          if( $var[0] == $key ){
            $var = explode ( $commentchar , $var[1] ); //On trouve une ligne commentée àla fin : on traite
            $var[0] = rtrim ( $var[0] , "\x00..\x1F" );
            return $var[0];//c'est la bonne clé on retourne la valeur
          }
    }
  }
  return NULL;
}

function set_infile($fileName , $inikey , $inival , $separator = '=' , $commentchar = ';'  )
{
  $update = false ; 
  $var = array();
  if ( get_infile ( $fileName , $inikey , $separator , $commentchar ) )
    $update = true ;
  $i = 0;
  
  if ( !$update ) {
    if ( file_exists ($fileName) ) 
      $p = fopen ( $fileName , 'a' );
    else $p = fopen ( $fileName , 'w' ); //le fichier est créé
    if ($p) {
      fwrite ( $p , $inikey.$separator.$inival."\r\n" );
      fclose ( $p );
    }
  }
  else {
    if ( file_exists ($fileName) ) {
      $p = fopen ( $fileName , 'r' ) ;
      if($p) {
        while ( !feof ( $p ) ) {
          $buffer[$i] = fgets ( $p );
          $buffer[$i] = rtrim ( $buffer[$i] , "\x00..\x1F" );
          $var = explode ( $separator , $buffer[$i] ) ;
          
          if ( count ( $var ) > 1 )
            if ( $var[0][0] != $commentchar )
              if ( $var[0] == $inikey ) {
                if ( isset ( $var[1] ) )
                  $var = explode ( $commentchar ,$var[1]);
                if ( isset ( $var[1] ) ){
                  if ( $var[1] != '' ){
                    $var[1]=ltrim($var[1],"\x00");
                    $buffer[$i] = $inikey.$separator.$inival."\t".$commentchar.$var[1];
                  }
                }
                else
                    $buffer[$i] = $inikey.$separator.$inival;
              }
          $i++;
        }
        fclose( $p );
      }
      $p = fopen ( $fileName , 'w' ) ;
      $i = 0;
      if ($p) {
        $bufferlength = count ( $buffer );
        while ( $i < $bufferlength ) {
          if( $buffer[$i] != '' )
            fwrite ( $p , $buffer[$i]."\r\n" );
          $i++;
        }
        
        fclose ($p);
      }
    }
  }
}


//$inifile = 'test.ini';
/*set_infile ( $inifile , 'daysinmonth', '30' ) ;//crée
set_infile ( $inifile , 'daysinmonth', '31' ) ;//modifie
set_infile ( $inifile , ';daysinweek', '10'   );
set_infile ( $inifile , 'daysinweek', '7'   ) ;//crée
set_infile ( $inifile , 'jourferie', 'dimanche' ) ;//crée
set_infile ( $inifile , ';jourferie', 'lundi' );

echo get_infile ( $inifile , 'jourferie');//affiche dimanche
echo get_infile ( $inifile , 'daysinmonth');//31*/

?>