Comments on: PHP double versus single quotes

By: PHP – Mais de 50 dicas sobre desempenho e segurança | :::PTBYTE:::

PHP – Mais de 50 dicas sobre desempenho e segurança | :::PTBYTE::: — Fri, 26 Feb 2010 13:00:07 +0000

[...] Ao trabalhar com Strings, caso não utilize avaliação de variáveis no meio da string ( “Olá {$name} !” ), evite utilizar aspas duplas (“) e opte por aspas simples (‘) porque o PHP irá sempre procurar pela existência de variáveis em strings com aspas duplas (“string exemplo”). [Citação] [...]

By: Abhishek Dilliwal

Abhishek Dilliwal — Tue, 05 Jan 2010 07:23:31 +0000

Yeah I was looking for this only and the post showed me the right path… I too will use single quots… bingo!

By: Micro Optimizations That Don’t Matter | BrandonSavage.net

Micro Optimizations That Don’t Matter | BrandonSavage.net — Mon, 26 Oct 2009 05:03:01 +0000

[...] Vs. Double Quotes This is one of the two big PHP optimization nightmares that just won’t die. The argument goes like this: because PHP has to parse a double-quoted [...]

By: 50+ PHP optimisation tips revisited « Narendra Dhami

50+ PHP optimisation tips revisited « Narendra Dhami — Tue, 29 Jul 2008 02:27:58 +0000

[...] Wrap your string in single quotes (’ instead of double quotes (” is faster because PHP searches for variables inside “…” and not in ‘…’, use this when you’re not using variables you need evaluating in your string. [Citation] [...]

By: PHP Optimization Tips | ProgTuts

PHP Optimization Tips | ProgTuts — Mon, 28 Jul 2008 13:40:21 +0000

[...] with concatenation is faster than putting your variables inside a double quote (”) string. (cite) echo ‘a string ‘ . $name; //is faster than echo "a string [...]

By: HM2K.com » 50+ PHP optimisation tips revisited

HM2K.com » 50+ PHP optimisation tips revisited — Tue, 20 May 2008 17:51:41 +0000

[...] Wrap your string in single quotes (’) instead of double quotes (”) is faster because PHP searches for variables inside “…” and not in ‘…’, use this when you’re not using variables you need evaluating in your string. [Citation] [...]

By: Rainer

Rainer — Thu, 03 Jan 2008 10:30:43 +0000

I realized the difference between ” and “” a little bit late. So since two years I have a 18k script in production that’s called about 1000 times per day.

After reading about speed concerns I changed all ” to ‘ (where no substitution is needed). That were about 650 occurrences.

Testing speed after that gave me the result that all the time is spent on database calls

So don’t waste your time on optimizing quotes when you have bigger time consumptive parts -> profile first!

But I agree that one should use single quotes whenever possible.

By: ‘ atau ” ?? « PHP - MySQL - Web Based Weaver

‘ atau ” ?? « PHP - MySQL - Web Based Weaver — Mon, 01 Oct 2007 06:42:02 +0000

[...] dari segi performansi keduanya tidak berbeda jauh (berbeda 0.6 detik untuk iterasi sebanyak 2juta [...]

By: codecrater.com » Blog Archive » PHP Fight Club: Single vs Double Quotes

Fri, 14 Sep 2007 01:12:52 +0000

[...] a simple speed test found on a blog entry about this very subject, we can see the difference directly. The funny thing is, the largest difference seems to be between [...]

By: Jose F escalante

Jose F escalante — Mon, 25 Jun 2007 14:16:40 +0000

Hi, this instruction is more slow: $c = “test {$i}”;