大约有 40,000 项符合查询结果（耗时：0.0348秒） [XML]
MySQL select 10 random rows from 600K rows fast
...d 2Gb size. See here my code: Fast selection of random rows in MySQL
<?php
$time= microtime_float();
$sql='SELECT COUNT(*) FROM pages';
$rquery= BD_Ejecutar($sql);
list($num_records)=mysql_fetch_row($rquery);
mysql_free_result($rquery);
$sql="SELECT id FROM pages WHERE RAND()*$num_records<2...
Tri-state Check box in HTML?
...
use this url (help.dottoro.com/ljuocesd.php) instead. It shows who supports it (everyone bar opera), since when, and visually displays what it is. People are scared of the spec pages. +1 for this not-a-plugin solution
– Hashbrown
...
Is there a standard naming convention for git tags? [closed]
...ackage managers advice to tag versions without prefix v (like composer for PHP projects).
SemVer 2.0 has nothing about tag specification. It's done intentionally due avoiding conflicts. However it's advised to add prefix v in documentation and text references. As example format v1.0.4 instead of ful...
Bootstrap Carousel image doesn't align properly
...<div class="active item" id="2"><a href="http://epdining.com/eats.php?place=TestRestaurant1"><img src="rimages/2.jpg"></a><div class="carousel-caption"><p>This restaurant is featured blah blah blah blah blah.</p></div></div>
...
Setting Django up to use MySQL
I want to move away from PHP a little and learn Python. In order to do web development with Python I'll need a framework to help with templating and other things.
...
Best data type for storing currency values in a MySQL database
...rsions of MySQL. It's also easier when you need to bring these values into PHP or something and compare values.
– Dane Bendixen
May 9 '18 at 21:35
add a comment
...
Replace transparency in PNG images with white background
...do not forget to do backup. More info here: imagemagick.org/script/mogrify.php
– tro
Jun 22 '17 at 17:28
|
show 4 more comments
...
How to compare two floating point numbers in Bash?
...thon. You have perl installed by default on many Linux/Unix systems.. even php also
– anubhava
Jul 19 '17 at 15:44
1
...
twitter bootstrap typeahead ajax example
...diately', 'This one too']);
return $.ajax({
url: "/ajax/myfilter.php",
type: 'GET',
data: {query: query},
dataType: 'json',
success: function (json) {
// in this example, json is simply an array of strings
return processAsync(json);
}
});
...
How do I add files and folders into GitHub repos?
...problem with adding files. I have added readme.txt . Also, I have 3 other PHP files and a folder including images.
9 Answ...