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here are some of the best and useful php scripts and snippets to help in your projects. Php displayed below. Use the search for specific script lookups. Click the category links to view scripts in Javascript and cgi. To add your own script click the link and add your useful script example.

delete a file line using preg match to target exact match in line string
delete file line string preg match
<?php 

      
function delete_line_preg($file,$target){
      if(isset(
$file,$target)){
      
$f fopen($file '.lock''w');
      
flock($fLOCK_SH);
      
$contents file($file);
      
flock($fLOCK_UN);
      
fclose($f);
      
$rows count($contents);
      for ( 
$i 0$i $rows$i++){
      if(
preg_match('/\b' $target '\b/i'$contents[$i])){
      unset(
$contents[$i]);
      }}
       
$filerep implode(""$contents);
       
$filerep preg_replace("/(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+/""\n"$filerep);
        if(
file_put_contents($file,$filerep,LOCK_EX)){
            return 
true;
        }}}
        
      
$file='cart-data.txt';
//    file - column index number - column value
   
delete_line_preg($file'target string');
?>


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