Move to next line when reading txt file in Php

Question

Good morning to you all! Guys, I’m relatively new to php, and in one of the jobs here at the company, I’m having a difficulty, which may seem simple, but n found solution in my searches, which is like skipping a line in a txt file.

What I want to do is simple, read a txt file, when I find a particular word, I need to jump to the next line and read those lines until the word is found again. I have more experience in java, and in java we have a method called readLine(), which automatically switches to the next line. I saw that in php there is this readLine(), but did not know how to apply, or it is different than what I use in java. Well, thank you in advance for your help and attention. Thank you!

Answer 1

You can use the function fgets() to read line by line as in the example:

$handle = fopen("nome do arquivo.txt", "r");
if ($handle) {
while (($line = fgets($handle)) !== false) {
    // lê a linha
}

fclose($handle);
} else {
// caso dê erro
} 

Source: How to Read a File line by line in PHP

Answer 2

Using the function readline, would that way:

$file = '/caminho/seu_arquivo.txt';

$linha_lida = 2;
if ( file_exists( $file ) && is_readable( $file ) ) {
    echo readLine($file, $linha_lida);
} else {
    echo "$file Não pode ser lido!";
}

Now to find a word in TXT, it would look something like this:

$searchthis = "palavra";
$matches = array();

$handle = fopen("/caminho/seu_arquivo.txt", "r");

if ($handle) {
      while (!feof($handle)) {
          $buffer = fgets($handle);
          if (strpos($buffer, $searchthis) !== FALSE) {
              $matches[] = $buffer;
          }
      }
  fclose($handle);
}

//mostra os resultados:
print_r($matches);