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PHP File: Removing Lines From File

Tag: file, remove line   Category: PHP Basic
post: 14 Apr 2008 read: 1,077


PHP File Tips - Part 13: If we want to remove line from file, we can use this trick. Read file into array, then unset item that we want remove. Last, write back to file. 

<?php
$f = "test.txt";

// read into array
$arr = file($f);

// remove second line
unset($arr[1]);

// reindex array
$arr = array_values($arr);

// write back to file
file_put_contents($f,implode($arr));
?>


Series this article:
PHP File: 3 Way of Reading File
PHP File: Reading File at Particular Lines
PHP File: Reading File at Particular Byte Ranges
PHP File: Checking File or Directory
PHP File: Showing All File in A Directory
PHP File: Showing All Files and Folders in Particular Directory
PHP File: Retrieving File Statistic
PHP File: Retrieving More File Information
PHP File: Counting Lines in a File
PHP File: Counting Characters and Words in File
PHP File: Writing File
PHP File: Locking and Unlocking File
PHP File: Removing Lines From File
PHP File: Inserting Lines into a File

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