[PHP-DB] Ifs, ands, or buts
Another one that should be easy that I am just not finding anywhere in
the manual.
How do I put an 'and' or an 'or' in an if statement?
I know I could achieve the same results with multiple if statements,
but that seems so inefficient.
Lets say I wanted to check a bunch of fields to make sure they weren't
empty. I can check one field by saying:
if ($field1) {
echo Field 1 is not empty;
}
Can't I just say:
if ($field1 and $field2 and $field3 and $field4) {
echo All four fields are field in;
}
Or
if ($field1 or $field2 or $field3 or $field4) {
echo At least one of the four fields is filled in;
}
?
Maybe its not the word and and or but maybe its or ||
respectively? That's what I've seen in other languages that let you do
this. I'm sure there must be a way to do this with PHP, too.
Thanks for your help.
Diana
[EMAIL PROTECTED] Will Work for Chocolate
http://www.vivaladata.com (and its worth every byte!)
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Re: [PHP-DB] Ifs, ands, or buts
http://www.php.net/manual/en/language.operators.logical.php -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
Re: [PHP-DB] Ifs, ands, or buts
Diana,
Diana Cassady said:
Another one that should be easy that I am just not finding anywhere in
the manual.
How do I put an 'and' or an 'or' in an if statement?
I know I could achieve the same results with multiple if statements,
but that seems so inefficient.
Lets say I wanted to check a bunch of fields to make sure they weren't
empty. I can check one field by saying:
if ($field1) {
echo Field 1 is not empty;
}
Can't I just say:
if ($field1 and $field2 and $field3 and $field4) {
echo All four fields are field in;
}
Or
if ($field1 or $field2 or $field3 or $field4) {
echo At least one of the four fields is filled in;
}
?
Maybe its not the word and and or but maybe its or ||
You solved it yourself. means 'AND' , || means 'OR'
respectively? That's what I've seen in other languages that let you do
this. I'm sure there must be a way to do this with PHP, too.
Thanks for your help.
Diana
[EMAIL PROTECTED] Will Work for Chocolate
http://www.vivaladata.com (and its worth every byte!)
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RE: [PHP-DB] Ifs, ands, or buts
Lets say I wanted to check a bunch of fields to make sure they weren't
empty. I can check one field by saying:
if ($field1) {
echo Field 1 is not empty;
}
I'd use empty() since certain values would cause your if to evalute to false
http://www.php.net/manual/en/function.empty.php
if(!empty($field1){
Can't I just say:
if ($field1 and $field2 and $field3 and $field4) {
echo All four fields are field in;
}
Have you tried it?
Once again, I'd use empty()
if(!empty($field1) !empty($field2) !empty($field3) !empty($field4)){
I like '', rather than 'and', but that's just me.
if ($field1 or $field2 or $field3 or $field4) {
echo At least one of the four fields is filled in;
}
See above but replace '' with '||' or 'or'
Maybe its not the word and and or but maybe its or ||
respectively? That's what I've seen in other languages that let you do
this. I'm sure there must be a way to do this with PHP, too.
http://www.php.net/manual/en/language.operators.logical.php
Tha manual is your friend, it can answer a lot of your questions. Once
again, I don't see what this has to do with databases.
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