Remove duplicates line from text file (PHP)

Question

I'm trying to remove duplicates lines from text file. My codes thus work though but its brings error which i have looked through the codes. Everything works. I used the inbuilt function like the array_unique but the array numbers start from 0 instead of 1. So i'm wondering if anyone could help me . Thanks

<?php
hott.txt(content)
vnea@yahoo.com
vnea@yahoo.com
dabrd@gmail.com
vnea@yahoo.com
dabrd@gmail.com
bread@gmail.com
bread@gmail.com
vnea@yahoo.com
dabrd@gmail.com
bread@gmail.com
syeas@hotmail.com
vnea@yahoo.com
vnea@yahoo.com

$contents=file("hott.txt");
$array = [];
foreach ($contents as $k=>$v){

$v = trim($v);
$array[$v]++;
}
print_r($array);


?>

```

If possible please add ex. file to question – K.B Jul 02 '22 at 17:27 — K.B, Jul 02 '22 at 17:27
ok sir i will let me see – Diana Studebaker Jul 02 '22 at 17:34 — Diana Studebaker, Jul 02 '22 at 17:34

K.B · Accepted Answer · 2022-07-02T18:02:04.903

0

with your file output would be as follows

<?php
print_r(file("test.txt"));
?>

Array ( [0] =>vnea@yahoo.com [1] => vnea@yahoo.com [2] => dabrd@gmail.com ...... )

Change needed

    $contents=file("hott.txt");

    $array = array_map('trim', $contents);

    $array = array_unique($array); //add this line to your code
    
    print_r($array);

edited Jul 02 '22 at 18:02

answered Jul 02 '22 at 17:48

K.B

885
5
10

Notice: Undefined index: xrcciosaus@gmail.com in . It works tho but got that error – Diana Studebaker Jul 02 '22 at 17:57
Updated answer ..please check – K.B Jul 02 '22 at 18:02
it is worth to you..please do upvote – K.B Jul 02 '22 at 18:07
alright i will, thanks sir – Diana Studebaker Jul 02 '22 at 18:13

score 0 · Answer 2 · answered Jul 02 '22 at 17:50

0

$lines = explode("\n", $lines);
$lines = array_unique($lines);
$lines = implode("\n", $lines);

Then write the $lines content into your file.

answered Jul 02 '22 at 17:50

WebPajooh

442
1
3
12

Remove duplicates line from text file (PHP)

2 Answers2