Get specific sentence of text files - php

Question

I have the following text file :
====================================================================================
INDEXNUMARTICLE: '1997'
FILE: '###\www.kkk.com\kompas-pront\0004\25\economic\index.htm' NUMSENT: '22' DOMAIN: 'economic'
====================================================================================
2. Social change is a general term which refers to:
4. change in social structure: the nature, the social institutions.
6. When behaviour pattern changes in large numbers, and is visible and sustained, it results in a social change.
I wanna get only the sentence without the numbering and save it in database :
=========================================================================
= id = topic = content =
=========================================================================
= 1 = economic = Social change is a general term which refers to: =
= change in social structure: the nature, =
= the social institutions. When behaviour pattern =
= changes in large numbers, and is visible and sustained,
= it results in a social change. =
CODE
function isNumber($string) {
return preg_match('/^\\s*[0-9]/', $string) > 0;
}
$txt = "C:/Users/User/Downloads/economic.txt";
$lines = file($txt);
foreach($lines as $line_num => $line) {
$checkFirstChar = isNumber($line);
if ($checkFirstChar !== false) {
$line_parts = explode(' ', $line);
$line_number = array_shift($line_parts);
foreach ($line_parts as $part) {
if (empty($part)) continue;
$parts = array();
$string = implode(' ', $parts);
$query = mysql_query("INSERT INTO tb_file VALUES ('','economic','$string')");
}
}
}
I have the problem with array, the data that inserted in column content are words by words in different row. please help me. thank you :)

Answer 1

I think your idea is to complicated - try this short one:
$txt = "C:/Users/User/Downloads/economic.txt";
$lines = file($txt);
foreach($lines as $line_num => $line) {
$checkFirstChar = isNumber($line);
if ($checkFirstChar !== false) {
//entire text line without number
$string = substr($line,strpos($line,"")+1);
$query = mysql_query("INSERT INTO tb_file VALUES ('','economic','$string')");
}
}

Answer 2

Try this one, with regex.
$regex = "/[0-9]\. /";
$txt = "C:/Users/User/Downloads/economic.txt";
$str = file_get_contents($txt);
$index = -1;
//Find the first ocurrence of a number followed by '.' and a whitespace
if(preg_match($regex, $str, $matches, PREG_OFFSET_CAPTURE)) {
$index = $matches[0][1];
}
//Remove all the text before that first occurrence
$str = substr($str, $index);
//Replace all the occurrences of number followed by '. ' with ' '
$text = preg_replace($regex, " ", $str);