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<p>Sadly, PHP warning system doesn't work that way:</p>
<p>----</p>
<p><?php<br>
error_reporting(-1);<br>
ini_set('display_errors', 1);<br>
<br>
if ($nothere) {<br>
echo "it is here";<br>
} else {<br>
echo "it isn't here";<br>
}<br>
-----</p>
<p>result</p>
<p>-----<br>
</p>
<p>joe@linuxmint:/var/www/coreBOSTest$ php k.php <br>
PHP Notice: Undefined variable: nothere in
/var/www/coreBOSTest/k.php on line 5<br>
PHP Stack trace:<br>
PHP 1. {main}() /var/www/coreBOSTest/k.php:0<br>
<br>
Notice: Undefined variable: nothere in /var/www/coreBOSTest/k.php
on line 5<br>
<br>
Call Stack:<br>
0.0001 393600 1. {main}() /var/www/coreBOSTest/k.php:0<br>
<br>
it isn't here<br>
</p>
<p>------<br>
</p>
<p><br>
</p>
<p>so you get the warning if the variable is not defined which is
what you are trying to avoid</p>
<p><br>
</p>
<p><br>
</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 5/5/21 17:04, Sukhdev Mohan wrote:<br>
</div>
<blockquote type="cite"
cite="mid:BB1184C6-8802-4244-A055-2AC007F81334@myti.it">
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<blockquote type="cite" class="">
<blockquote type="cite" class="">if ($variableList) {<br
class="">
</blockquote>
<br class="">
would provide the same result? To me that simple if($var)
statement says, "if $var is not equal to a boolean false, or 0,
or null then continue"...</blockquote>
<div class=""><br class="">
</div>
Yup, $var = [] is still 0 so it’s a falsy value (love the C based
programming languages).
<div class=""><br class="">
</div>
<div class="">I’d like to propose, let’s anticipate the rejection
instead of nested ifs for the expected values (normally ifs
should be used to handle exceptions not for the basic
functionalities), like this:</div>
<div class=""><br class="">
</div>
<div class=""><font style="background-color: rgb(255, 255, 236);"
class="" face="Menlo">If(!$var) { // check what will break the
code</font></div>
<div class=""><font style="background-color: rgb(255, 255, 236);"
class="" face="Menlo"> // reject statement and exit routine</font></div>
<div class=""><font style="background-color: rgb(255, 255, 236);"
class="" face="Menlo">}</font></div>
<div class=""><font style="background-color: rgb(255, 255, 236);"
class="" face="Menlo"><br class="">
</font></div>
<div class=""><font style="background-color: rgb(255, 255, 236);"
class="" face="Menlo">// continue the normal flow</font></div>
<div class=""><br class="">
</div>
<div class="">This would also improve readability as it’s short
and you immediately see what can cause a break.</div>
<div class=""><br class="">
<div class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color:
rgb(0, 0, 0); letter-spacing: normal; text-align: start;
text-indent: 0px; text-transform: none; white-space: normal;
word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; word-wrap: break-word;
-webkit-nbsp-mode: space; line-break: after-white-space;"
class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color:
rgb(0, 0, 0); letter-spacing: normal; text-align: start;
text-indent: 0px; text-transform: none; white-space:
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;
text-decoration: none; word-wrap: break-word;
-webkit-nbsp-mode: space; line-break: after-white-space;"
class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color:
rgb(0, 0, 0); letter-spacing: normal; text-align: start;
text-indent: 0px; text-transform: none; white-space:
normal; word-spacing: 0px; -webkit-text-stroke-width:
0px; text-decoration: none; word-wrap: break-word;
-webkit-nbsp-mode: space; line-break:
after-white-space;" class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0); color:
rgb(0, 0, 0); letter-spacing: normal; text-align:
start; text-indent: 0px; text-transform: none;
white-space: normal; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration: none;
word-wrap: break-word; -webkit-nbsp-mode: space;
line-break: after-white-space;" class="">
<div dir="auto" style="caret-color: rgb(0, 0, 0);
color: rgb(0, 0, 0); letter-spacing: normal;
text-align: start; text-indent: 0px; text-transform:
none; white-space: normal; word-spacing: 0px;
-webkit-text-stroke-width: 0px; text-decoration:
none; word-wrap: break-word; -webkit-nbsp-mode:
space; line-break: after-white-space;" class="">
<div>Best Regards,<br class="">
<b class="">Sukhdev Mohan</b> | <b class="">Software Developer</b></div>
</div>
<br class="Apple-interchange-newline">
</div>
<br class="Apple-interchange-newline">
</div>
<br class="Apple-interchange-newline">
</div>
<br class="Apple-interchange-newline">
</div>
<br class="Apple-interchange-newline">
<br class="Apple-interchange-newline">
</div>
<div><br class="">
<blockquote type="cite" class="">
<div class="">Il giorno 5 mag 2021, alle ore 16:14, Alan
Lord <<a href="mailto:alanslists@gmail.com" class=""
moz-do-not-send="true">alanslists@gmail.com</a>> ha
scritto:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">In the fairly recent past there have been a
number of minor commits made which, I guess, are to help
prevent php WARNING and/or NOTICE type messages, e.g.<br
class="">
<br class="">
Something like this:<br class="">
<br class="">
<blockquote type="cite" class="">if
(count($variableList) > 0) {<br class="">
</blockquote>
<br class="">
became this:<br class="">
<br class="">
<blockquote type="cite" class="">if
(!empty($variableList) &&
(count($variableList) > 0)) {<br class="">
</blockquote>
<br class="">
But this seem to be overkill...<br class="">
<br class="">
As I understand things simply doing this:<br class="">
<br class="">
<blockquote type="cite" class="">if ($variableList) {<br
class="">
</blockquote>
<br class="">
would provide the same result? To me that simple
if($var) statement says, "if $var is not equal to a
boolean false, or 0, or null then continue"...<br
class="">
<br class="">
count($var) would return an integer if $var is a string,
so it is not a useful explicit test for an array.<br
class="">
<br class="">
And from the php manual, empty($var) says "a variable is
considered empty if it does not exist or if its value
equals false"<br class="">
<br class="">
<br class="">
Thoughts / Comments?<br class="">
<br class="">
<br class="">
Al<br class="">
<br class="">
_______________________________________________<br
class="">
<a href="http://www.vtiger.com/" class=""
moz-do-not-send="true">http://www.vtiger.com/</a><br
class="">
</div>
</div>
</blockquote>
</div>
<br class="">
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<pre class="moz-quote-pre" wrap="">_______________________________________________
<a class="moz-txt-link-freetext" href="http://www.vtiger.com/">http://www.vtiger.com/</a></pre>
</blockquote>
<pre class="moz-signature" cols="72">--
Un saludo
Joe
TSolucio
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responsabilidad por estas circunstancias.</pre>
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