babu wrote:
Hi i have a txt file like
[SUBSTRAT]
TYP=25x25_10
SUBSTRATNAME=S112
PIXEL=5
OPERATOR=Zi
KOMMENTAR=dunkel
INTENSITAET=1000.000000
[MESSUNG]
DATUM=03.01.2005
UHRZEIT=11:22
MESSUNG=SWEEP_UI
i want to delete lines which start with '[' and 'TYP'. i have multiple such files.i have used strstr method. i have written code for it, but it results in deletion of complete data from files. Can anyone check where the logic goes wrong.
here is my file.
<?
$del_lines=array("[","TYP","P_MPP","I_MPP","V_MPP","T=","FIT","INTENSITAET");
$dir=getcwd();
$handle = opendir($dir);
while (false !== ($file = readdir($handle))) {
if ((preg_match('/^2005\d{4}_\d{4}\.txt$/',
$file))||(preg_match('/^2005\d{4}_\d{4}\_01_01\.txt$/',$file))){
$fc=file($file);
$f=fopen($file,"w");
foreach($fc as $line){
$bool=TRUE;
for($i=0;$i<sizeof($del_lines);$i++){
if(!strstr($line,$del_lines[$i])){
$bool=FALSE;}
break;
//fputs($f,$line);
}
//if($bool){fputs($f,$line);}
}
if($bool){fputs($f,$line);}
fclose($f);
}
}
closedir($handle);
?>
---------------------------------
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wouldn't something like this work (faster):
<?php
$deleteLines =
array("[","TYP","P_MPP","I_MPP","V_MPP","T=","FIT","INTENSITAET");
if($handle = opendir('.')) {
while(($file = readdir($handle)) !== false) {
// init vars
$contents = '';
if (!(preg_match('/^2005\d{4}_\d{4}\.txt$/', $file) ||
preg_match('/^2005\d{4}_\d{4}\_01_01\.txt$/',$file))){
// the filename has been rejected; move on to the next
one
continue;
}
// right, we need to open the file now so we can delete the
lines
$contents = file($file);
$stream = fopen($file, 'w');
// loop trough the file, examining each line
foreach($contents as $line=>data) {
foreach($deleteLines as $delete) {
if(0 !== strpos($data, $delete)) {
// string does not start with one of
the ToBeDeleted parts
// this (combines strpos() !== false ||
strpos() > 0)
//
// so, let's write it back to the file
fwrite($stream, $data, strlen($data));
}
}
}
fclose($stream);
}
}
closedir($handle);
?>
I'm assuming here you want to only delete lines STARTING with the part
given in the array.
- tul
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