php - why does preg_split work on my local copy but not on production? WHY DOES IT RETURN LITERALLY NOTHING? IS PHP JUST HELL? - devRant

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Comments

1

C0D4

64418

5y

Preg_split() returns false if there is something wrong, probably what it is doing.

If you don't need to split with regex, use explode() instead.
4

msdsk

3078

5y

@C0D4

I was using it for regex. Turns out regex engine got changed a bit between 7.2 (my local PHP) and 7.3 (production version). Turns out that life is an endless hell by itself.
3

100110111

3741

5y

@msdsk I was going to come here and ask about this, but seems you figured it out (had this exact same problem before)
1

Oktokolo

11238

5y

@msdsk
Was it a case of using non-regular patterns? Asking for a friend...
2

Inigo

325

5y

Running different versions of php on local vs production is usually asking for trouble tbh
2

100110111

3741

5y

@Inigo yep preferably never do that on purpose unless you’re gearing up for a php version update for prod.
1

msdsk

3078

5y

@Inigo

Well, I _thought_ I had the same version. Welp, turns out not.
1

msdsk

3078

5y

@Oktokolo

It was [\s-_\/], in 7.3 you need to escape the hyphen.
1

Oktokolo

11238

5y

@msdsk
Looks regular to me.
But hyphen embedded in a group actually are to be treated as defining a range if not escaped. So 7.3 fixed a bug.

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