regex remove number between line breaks

Question

I have a huge code that has numbers between some lines: eg:

code code code
7362
code code code
code code code
code code code
63
code code code
...

I want to remove this numbers, between code to become:

code code code
code code code
code code code
code code code
code code code

I tried:

$a = preg_replace("/(s[0-9,]+s)/", "", $a);

but it is not working.

/(s[0-9,]+s

http://stackoverflow.com/a/14236162/3164682 – Sarath Aug 24 '16 at 07:36 — Sarath, Aug 24 '16 at 07:36

score 1 · Answer 1 · answered Aug 24 '16 at 07:34

1

You forget to escape 's'

$a = preg_replace("/(\s[0-9,]+\s)/", "", $a);

And coma after 9 is not necessary.

answered Aug 24 '16 at 07:34

Michał M

618
5
13

However, this `\s[0-9,]+\s` will remove line breaks and won't find numbers at the start/end of the string. Actually, this will remove numbers anywhere, not just number-only strings. – Wiktor Stribiżew Aug 24 '16 at 07:38

score 1 · Answer 2 · answered Aug 24 '16 at 07:41

The best way to remove digit-only lines is to use

'~^\d+$\R*~m'

See the regex demo

Pattern details:

^ - start of line (since ~m MULTILINE modifier enables ^ to match the start of a line, not string)
\d+ - 1 or more digits
$ - end of line
\R* - zero or more line breaks (any sequence like LF, CR, CR+LF).

PHP demo:

$str = "code code code\n7362\ncode code code\ncode code code\ncode code code\n63\ncode code code\n..."; 
$result = preg_replace('~^\d+$\R*~m', '', $str);
echo $result;

score -1 · Answer 3 · edited Aug 24 '16 at 08:26

-1

This will remove all digits:

$words = preg_replace('/[0-9]+/', '', $words);

edited Aug 24 '16 at 08:26

jmattheis

10,494
11
46
58

answered Aug 24 '16 at 07:36

Kamlesh Gupta

505
3
17

score -1 · Answer 4 · answered Aug 24 '16 at 07:46

-1

I tried this its working for me.

/[1-9][0-9]*/g

answered Aug 24 '16 at 07:46

Ahmed Jehanzaib

158
1
10

regex remove number between line breaks

4 Answers4