Do You Quote or No Quote ?

@developer_webMay 21.2021

Folks,

Which your preferred way out of these ?
urlencode(‘string’);
urlencode(“string”);

urlencode($var);
urlencode(“$var”);

Note the sngl quotes, dbl quotes, no quotes.

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8 Comments(s) _↴

@developer_webauthorMay 21.2021 — #Folks,

Again, which you prefer out of the two ?

Note the values of both samples' $file_path. Note the '/' at the end on both.

Note the $url on both samples too.

<i>
 </i>&lt;?php
 //NOTE: Use rawurlencode() for File Path Strings. Use before the '?'.
 //NOTE: Use urlencode() for Query Strings. Use after the '?'.
 
 $max = 10; $page = 1;
 $file_path = $_SERVER['PHP_SELF'] .'/' .'search';
 $query_string = '?tbl=' .urlencode('links') .'&amp;col=' .urlencode('keyword') .'&amp;max=' .urlencode("$max") .'&amp;page=' .urlencode("$page");
 
 $url = rawurlencode("$file_path") .'/' .$query_string;
 
 ?&gt;

<i>
 </i>&lt;?php
 //NOTE: Use rawurlencode() for File Path Strings. Use before the '?'.
 //NOTE: Use urlencode() for Query Strings. Use after the '?'.
 
 $max = 10; $page = 1;
 $file_path = $_SERVER['PHP_SELF'] .'/' .'search' .'/';
 $query_string = '?tbl=' .urlencode('links') .'&amp;col=' .urlencode('keyword') .'&amp;max=' .urlencode($max) .'&amp;page=' .urlencode($page);
 
 $url = rawurlencode($file_path) .$query_string;
 
 ?&gt;

@NogDogMay 21.2021 — #> @developer_web#1631949 urlencode("$var");

The quotes in this example serve no purpose. Otherwise I tend to prefer single quotes unless I need the capabilities of double quotes (variable interpolation or special escape characters like "n" or"t").

@developer_webauthorMay 23.2021 — #@NogDog#1631960

If I don't quote non-variables inside urlencode() then I got undefined constant or whatever error 2 days ago.

I have noticed $vars don't need quoting inside urlencode().

My findings correct ?

@developer_webauthorMay 23.2021 — #@NogDog#1631960

Ok. So these 4 are ok, according to you:

**SET 1**

> SAMPLE 1

<i>
 </i>&lt;?php
 
 $max = 10; $page = 1;
 $file_path = $_SERVER['PHP_SELF'] .'/' .'search'; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 $query_string = '?tbl=' .urlencode('links') .'&amp;col=' .urlencode('keyword') .'&amp;max=' .urlencode($max) .'&amp;page=' .urlencode($page);
 
 $url = rawurlencode($file_path) .'/' .$query_string; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 
 ?&gt;

**SET 1**

> SAMPLE 2

<i>
 </i>&lt;?php
 
 $max = 10; $page = 1;
 $file_path = $_SERVER['PHP_SELF'] .'/' .'search'; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 $query_string = '?tbl=' .urlencode("links") .'&amp;col=' .urlencode("keyword") .'&amp;max=' .urlencode($max) .'&amp;page=' .urlencode($page);
 
 $url = rawurlencode($file_path) .'/' .$query_string; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 
 ?&gt;

-------

**SET 2**

> SAMPLE 1

<i>
 </i>&lt;?php
 
 $max = 10; $page = 1;
 $file_path = $_SERVER['PHP_SELF'] .'/' .'search' .'/'; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 $query_string = '?tbl=' .urlencode('links') .'&amp;col=' .urlencode('keyword') .'&amp;max=' .urlencode($max) .'&amp;page=' .urlencode($page);
 
 $url = rawurlencode($file_path) .$query_string; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 
 ?&gt;

**SET 2**

> SAMPLE 2

<i>
 </i>&lt;?php
 
 $max = 10; $page = 1;
 $file_path = $_SERVER['PHP_SELF'] .'/' .'search' .'/'; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 $query_string = '?tbl=' .urlencode("links") .'&amp;col=' .urlencode("keyword") .'&amp;max=' .urlencode($max) .'&amp;page=' .urlencode($page);
 
 $url = rawurlencode($file_path) .$query_string; //COMPARE THIS LINE WITH OTHER SET SAMPLE.
 
 ?&gt;

Am I correct you like: SET 1 Sample 1.

And like: Set 2 Sample 1.

But out of these 2 which one you prefer over the other ?

I prefer: Set 2 Sample 1.

What-about you ?

**Note the code comments. Important.**

@developer_webauthorMay 23.2021 — #@sempervivum

I'd like your feed-back on my previous post, too.

**Note the code comments. Important.**

@NogDogMay 23.2021 — #Too much to read, but this is needless use of concatenation:
[code=php]$file_path = $_SERVER['PHP_SELF'] .'/' .'search' .'/';[/code]
Either of these will work:

[code=php]
 $file_path = $_SERVER['PHP_SELF'] .'/search/';
 $file_path = "{$_SERVER['PHP_SELF']}/search/";
 [/code]

@developer_webauthorJun 05.2021 — #@NogDog#1632051

Thanks. But why the brackets on your 2nd example ?

@NogDogJun 05.2021 — #> @developer_web#1632583 why the brackets on your 2nd example ?

Because that's how you can embed PHP variables within a double-quoted string (or a "HEREDOC"* string), regardless of whether it's an array element or object property, or if it would be unclear where the variable name ends. See [the manual](https://www.php.net/manual/en/language.types.string.php#language.types.string.parsing.complex) for details.

_______________________

* [PHP manual entry on HERDOC](https://www.php.net/manual/en/language.types.string.php#language.types.string.syntax.heredoc)

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