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|
<?php class cvs_data
{
var $open=false;
var $filname='';
var $isbusy=false;
var $starts=false;
var $ends=false;
var $canedit=false;
var $delete=array();
var $row_count=0;
var $col_count=0;
var $buff=array();
var $champs=array();
var $assoc=array();
function csv_create($filname,$colnames)
{
$fl=explode(';',$colnames);
if(is_array($fl))
{
$this->col_count=count($fl);
foreach($fl as $k=>$val)
{
if(!is_string($val))return false;
$this->champs[$k]=$val;
$this->assoc[$val]=$k;
}
$this->filname=$filname;
$this->csv_update();
return true;
}
}
function csv_truncate()
{
$this->buff=array();
$this->csv_update();
}
function csv_open($filname,$start=0,$limit=false)
{
if($limit!=false)
{
$this->ends=$limit+$start;
}
else
{
$this->ends=10000;
}
$this->starts=$start;
$this->filname=$filname;
$this->csv_read();
}
function csv_read()
{
$h=@ fopen($this->filname,"r");
$this->buff=array();
if($h)
{
$inc=0;
$srat=false;
while(($data=fgetcsv($h,4096,";"))!==FALSE)
{
if($srat==false)
{
$srat=true;
$this->buff[]=$data;
}
else
{
$inc++;
if($inc>$this->starts)
{
if($inc>$this->ends)break;
$this->buff[]=$data;
}
}
}
if(count($this->buff)>0)
{
if(is_array($this->buff[0]))
{
$this->col_count=count($this->buff[0]);
$this->assoc=@ array_flip($this->buff[0]);
$this->champs=$this->buff[0];
@ array_shift($this->buff);
$this->row_count=count($this->buff);
}
$this->isbusy=true;
}
$this->index=1;
$this->open=true;
@ fclose($h);
}
$this->delete=array();
return $this->open;
}
function csv_assoc()
{
return $this->csv_ex(true);
}
function csv_array()
{
return $this->csv_ex();
}
function csv_ex($arr=false)
{
if(count($this->buff)==0 || $this->isbusy==false)
{
$this->isbusy=false;
return false;
}
if(count($this->champs)==count($this->buff[0]))
{
$out=($arr)?@ array_combine($this->champs,$this->buff[0]):$this->buff[0];
}
else
{
$out='erreur a '.count($this->buff);
}
@ array_shift($this->buff);
return $out;
}
function csv_delete($val,$refresh=true)
{
if($this->isbusy)
{
if(is_array($val))
{
@ $this->delete=array_merge($this->delete,$val);
}
else
{
@ $this->delete[]=$val;
}
if($refresh)
{
$this->csv_update();
}
return true;
}
}
function csv_insert($val,$refresh=true)
{
if($this->isbusy)
{
if(is_array($val)&& count($val)==$this->col_count)
{
$this->buff[]=$val;
if($refresh)
{
$this->csv_update();
}
return true;
}
}
}
function csv_edit($val,$rw,$col,$refresh=true)
{
if($this->can_edit())
{
if(intval($rw)<$this->row_count && in_array($col,$this->champs))
{
@ $this->buff[intval($rw)][$this->assoc[$col]]=$val;
if($refresh)
{
$this->csv_update();
}
return true;
}
}
}
function can_edit()
{
return(count($this->buff)==$this->row_count && $this->isbusy)?true:false;
}
function csv_update()
{
$this->csv_refresh();
$this->csv_read();
}
function csv_refresh()
{
$this->open=false;
$h=@ fopen($this->filname,"w");
if($h)
{
@ $this->fputcsv($h,$this->champs,';');
foreach($this->buff as $lin=>$val)
{
if(!in_array($lin,$this->delete))
{
@ $this->fputcsv($h,$val,';');
}
}
fclose($h);
$this->delete=array();
return true;
}
return false;
}
function csv_echo()
{
$out='<table border="1">';
$out.='<thead><tr><th>'.implode('</th><th>',$this->champs)."</th></tr>\r";
$out.='</thead><tbody>';
foreach($this->buff as $lin=>$val)
{
$out.="<tr><td>".implode('</td><td>',$val)."</td></tr>\r";
}
$out.='</tbody><table>';
echo $out;
}
function fputcsv(&$handle, $fields = array(), $delimiter = ',', $enclosure = '"') {
$str = '';
$escape_char = '\\';
foreach ($fields as $value) {
if (strpos($value, $delimiter) !== false ||
strpos($value, $enclosure) !== false ||
strpos($value, "\n") !== false ||
strpos($value, "\r") !== false ||
strpos($value, "\t") !== false ||
strpos($value, ' ') !== false) {
$str2 = $enclosure;
$escaped = 0;
$len = strlen($value);
for ($i=0;$i<$len;$i++) {
if ($value[$i] == $escape_char) {
$escaped = 1;
} else if (!$escaped && $value[$i] == $enclosure) {
$str2 .= $enclosure;
} else {
$escaped = 0;
}
$str2 .= $value[$i];
}
$str2 .= $enclosure;
$str .= $str2.$delimiter;
} else {
$str .= $value.$delimiter;
}
}
$str = substr($str,0,-1);
$str .= "\n";
return fwrite($handle, $str);
}
}
?> |
[CSV] Lecture de fichier CSV
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