$handle = @fopen("1.txt", "r");
$str="";
if ($handle) {
for($i=0;$i++;$i<3){
$buffer = fgets($handle, 4096);
if(strpos($buffer,"aaaa")!==false){
$str.= $buffer;
}elseif(strpos($buffer,"bbbb")!==false){
$str.= "[".$buffer."]";
}elseif(strpos($buffer,"cccc")!==false){
$str.= "(".$buffer.")";
}
}
fclose($handle);
}
echo $str;
?>
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