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select count(*) from table of mysql in php
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You need to alias the aggregate using the as keyword in order to call it from mysql_fetch_assoc
$result=mysql_query("SELECT count(*) as total from Students");
$data=mysql_fetch_assoc($result);
echo $data['total'];
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Is $(document).ready necessary?
...o go back and debug old code if you reuse it elsewhere?
off-topic:
As a side note: you should use jQuery(function($){...}); instead of $(document).ready(function(){...}); as it forces the alias to $.
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Pass data to layout that are common to all pages
...ut page. However this layout page have data which all pages model must provide such page title, page name and the location where we actually are for an HTML helper I did which perform some action. Also each page have their own view models properties.
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@Media min-width & max-width
... styles here for older browsers.
I tend to go for a 600px - 960px width max but using percentages
*/
@media only screen and (min-width: 960px) {
/* styles for browsers larger than 960px; */
}
@media only screen and (min-width: 1440px) {
/* styles for browsers ...
EC2 instance types's exact network performance?
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Bandwidth is tiered by instance size, here's a comprehensive answer:
For t2/m3/c3/c4/r3/i2/d2 instances:
t2.nano = ??? (Based on the scaling factors, I'd expect 20-30 MBit/s)
t2.micro = ~70 MBit/s (qiita says 63 MBit/s) - t1.m...
Android disable screen timeout while app is running
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That is actually more complicated than needed. Just call setKeepsScreenOn(true) anywhere, and the framework will automatically take care of keeping the screen on when your window is being shown.
– hackbod
Sep 24 '12 at 7:58
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What does it mean in shell when we put a command inside dollar sign and parentheses: $(command)
... working directory. I am aware that $(variable) name return the value inside the variable name, but what is $(command) supposed to return? Does it return the value after executing the command? In that case, we can use ` to execute the command.
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CSS container div not getting height
...ng what height the child div s are going to have. I was trying out on JSFiddle . The container div is on red. which is not showing up. Why?
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Pandas every nth row
... c
0 x x x
1 x x x
2 x x x
The index is floor-divved by the stride (2, in this case). If the index is non-numeric, instead do
# df.groupby(np.arange(len(df)) // 2).first()
df.groupby(pd.RangeIndex(len(df)) // 2).first()
a b c
0 x x x
1 x x x
2 x x x
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Merge two Git repositories without breaking file history
...ove the old_a repo files and folders into a subdirectory so they don't collide with the other repo coming later
mkdir old_a
dir -exclude old_a | %{git mv $_.Name old_a}
# Commit the move
git commit -m "Move old_a files into subdir"
# Do the same thing for old_b
git remote add -f old_b <OldB rep...