Php: What is the difference between | and || operator

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Reference - What does this symbol mean in PHP?
What is the difference between the | and || operators?

Just bumped into this line of code, and I was wondering what is the difference between these two case:

The person who did this do not remember what was the meaning, but it was important.

...
if ($condition1 | $condition2) {
...

...
if ($condition1 || $condition2) {
...

See [Reference - What does this symbol mean in PHP?](http://stackoverflow.com/questions/3737139/reference-what-does-this-symbol-mean-in-php) — BoltClock, Mar 22 '11 at 16:01
http://stackoverflow.com/questions/2233835/what-is-the-difference-between-the-and-operators — Elzo Valugi, Mar 22 '11 at 16:02
I tried to search for `operator` and `|` before asking the question, but didn't found anything (since I didn't know the term to use (bitwise operator). The question can be deleted, thanks. — yvoyer, Mar 22 '11 at 16:19
@yvoyer: As a general tip, you can visit `php.net/whatever` and PHP will translate the whatever into a search for that term. The operators URL I posted above was the result of hitting `php.net/operator` — Marc B, Mar 22 '11 at 16:25

score 2 · Answer 1 · answered Mar 22 '11 at 16:03

2

| = bitwise or

|| = boolean or

answered Mar 22 '11 at 16:03

osm

score 1 · Accepted Answer · answered Mar 22 '11 at 16:02

1

| is a bitwise or, || is a logical or. | operates on binary values whereas || operates on boolean ones.

E.g. 5 | 3 is 0101 OR 0011 which is 0111 which is 7, whereas True || False is True and False || False is False.

answered Mar 22 '11 at 16:02

Rafe Kettler

score 0 · Answer 3 · answered Mar 22 '11 at 16:03

0

| is the bitwise-OR-operator while || is the logical-OR-operator.

answered Mar 22 '11 at 16:03

3 Answers3