Markus  6,050
Recognized Expert Expert
As you see in MySQL there is the "LIKE ='%something%'"
I was wondering if there was a way to do this within PHP?
Thanks :)
11 1537  code green 1,726
Recognized Expert Top Contributor
The closest is strstr() which searches for a string within a string
Motoma 3,237
Recognized Expert Specialist
The closest is strstr() which searches for a string within a string
I think a much nicer function to try is preg_match()! The only caveat is that you will need to use regular expressions.
Don't use regular expressions unless you need them. Regular expression take longer to run and use up more memory. I just replied to a convo about this earlier today, you can see my test results <LINK REMOVED> Motoma 3,237
Recognized Expert Specialist
Don't use regular expressions unless you need them. Regular expression take longer to run and use up more memory. I just replied to a convo about this earlier today, you can see my test results <LINK REMOVED>
Compare both of those results to the amount of time for the request, round trip from handshake until the acknowledgment of the final packet. Add the execution times into the transfer time, and then give a final estimate on the difference in speed. I would be surprised if it was more than 10% overhead.
Additionally, you could include a version of your test which did a search for "toasty%sub " and see if, after the logic for the two combined searches complete, there is a performance difference which worries you.
Markus 6,050
Recognized Expert Expert
You make me feel soo self conscious about my progress with PHP.
I think my a-levels are going to have to reside in computing of some sort, so's i can catch up with you guys ¬_¬
Thanks for the replies and guidance!
:)
Markus 6,050
Recognized Expert Expert
While we're here,
i see things like this ALL over the place, i.e. email validation and such.
[php]
'/^[a-z]*$/'
[/php]
Anyone care to elaborate on what this is and does?
:)
Motoma 3,237
Recognized Expert Specialist
While we're here,
i see things like this ALL over the place, i.e. email validation and such.
[php]
'/^[a-z]*$/'
[/php]
Anyone care to elaborate on what this is and does?
:)
The ^ indicates the start of a string, the $ indicates the end of one. [a-z] represents all lowercase letters, while * indicates that there are no limits on the number of them. Therefore, that string used in preg_match will tell you whether or not the string is made only of lowercase alphabet characters.
Note: were the pattern string to contain an i after the final slash, it would perform a case-insensitive search, therefore upper and lowercase letters allowed.
Markus 6,050
Recognized Expert Expert
Ok, i'm starting to understand it :)
Thanks!
ak1dnar 1,584
Recognized Expert Top Contributor
tj111, I had to remove a link to another forum, from your post because posting such links, against our site rules. For further clarification please read the 6th point of "Things that are generally unacceptable" on FAQs. In future, It's better to discuss everything here at the same thread without pointing Other forum links. Still you can post links to good articles on other web sites, but NOT the forums links.
Thanks for your time.
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