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What's the difference between echo, print, and print_r in PHP?
...s you have in your variables. Consider this test program:
$values = array(0, 0.0, false, '');
var_dump($values);
print_r ($values);
With print_r you can't tell the difference between 0 and 0.0, or false and '':
array(4) {
[0]=>
int(0)
[1]=>
float(0)
[2]=>
bool(false)
[3]=...
CSS last-child selector: select last-element of specific class, not last child inside of parent?
...f .comment.
body {
background: black;
}
.comment {
width: 470px;
border-bottom: 1px dotted #f0f0f0;
margin-bottom: 10px;
}
.comment:last-of-type {
border-bottom: none;
margin-bottom: 0;
}
<div class="commentList">
<article class="comment " id="com21">&...
How do I select elements of an array given condition?
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answered Jun 13 '10 at 0:50
jfsjfs
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Operation on every pair of element in a list
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edited Jun 3 '09 at 18:12
answered Jun 3 '09 at 0:24
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Explain the use of a bit vector for determining if all characters are unique
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103
int checker is used here as a storage for bits. Every bit in integer value can be treated as a ...
Calculate last day of month in JavaScript
If you provide 0 as the dayValue in Date.setFullYear you get the last day of the previous month:
20 Answers
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Integer division with remainder in JavaScript?
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1309
For some number y and some divisor x compute the quotient (quotient) and remainder (remainder) ...
Maven Snapshot Repository vs Release Repository
... development. A Snapshot artifact has both a version number such as “1.3.0” or “1.3” and a timestamp. For example, a snapshot artifact for commons-lang 1.3.0 might have the name commons-lang-1.3.0-20090314.182342-1.jar.
Taken from refcard
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Better techniques for trimming leading zeros in SQL Server?
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SUBSTRING(str_col, PATINDEX('%[^0]%', str_col+'.'), LEN(str_col))
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Why is printing to stdout so slow? Can it be sped up?
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I ran your file writing test on my machine, and with buffering, it also 0.05s here for 100,000 lines.
However, with the above modifications to write unbuffered, it takes 40 seconds to write only 1,000 lines to disk. I gave up waiting for 100,000 lines to write, but extrapolating from the previou...