Finding All Matching Lines in a File : preg_match « String « PHP






  1. PHP
  2. String
  3. preg_match

Finding All Matching Lines in a File

 
<?php 
$file = fopen("testfile.txt", "r") or die("Cannot open file!\n"); 
while ($line = fgets($file, 1024)) { 
    if (preg_match("/Hello( World!)?/", $line)) { 
        echo "Found match: " . $line; 
    } else { 
        echo "No match: " . $line; 
    } 
} 
fclose($file); 

?>








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