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is_null($x) vs $x === null in PHP [duplicate]
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//checking with ===
$a = array();
$time = microtime(true);
for($i=0;$i<10000;$i++) {
if($a[$i] === null) {
//do nothing
}
}
echo 'Testing with === ', microtime(true) - $time, "\n";
//checking with is_null()
$time = microtime(true);
for($i=0;$i<10000;$i++) {
if(is_null($a...
Is there any way I can define a variable in LaTeX?
...0
Werner
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answered Jul 31 '09 at 10:50
secondsecond
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How to concatenate text from multiple rows into a single text string in SQL server?
... ORDER BY ST1.SubjectID
FOR XML PATH ('')
), 2, 1000) [Students]
FROM dbo.Students ST2
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Read url to string in few lines of java code
...next beginning.
– Rune
May 5 '13 at 10:00
7
Neat, but fails if the webpage returns no content (""...
Missing include “bits/c++config.h” when cross compiling 64 bit program on 32 bit in Ubuntu
I am running the 32bit version of Ubuntu 10.10 and trying to cross compile to a 64 bit target. Based on my research, I have installed the g++-multilib package.
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When to use %r instead of %s in Python? [duplicate]
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Ben JamesBen James
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How to use icons and symbols from “Font Awesome” on Native Android Application
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edited Jun 6 '14 at 10:49
hsz
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How do I create a new Swift project without using Storyboards?
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akashivskyyakashivskyy
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What's the equivalent of use-commit-times for git?
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