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Is APC compatible with PHP 5.4 or PHP 5.5?
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14 Answers
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Histogram Matplotlib
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import matplotlib.pyplot as plt
import numpy as np
mu, sigma = 100, 15
x = mu + sigma * np.random.randn(10000)
hist, bins = np.histogram(x, bins=50)
width = 0.7 * (bins[1] - bins[0])
center = (bins[:-1] + bins[1:]) / 2
plt.bar(center, hist, align='center', width=width)
plt.show()
The...
MySQL ON DUPLICATE KEY - last insert id?
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179
Check this page out: https://web.archive.org/web/20150329004325/https://dev.mysql.com/doc/refm...
postgresql return 0 if returned value is null
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182
use coalesce
COALESCE(value [, ...])
The COALESCE function returns the first of its argume...
Base64: What is the worst possible increase in space usage?
...ore converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)?
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What is the LD_PRELOAD trick?
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edited Mar 29 '14 at 20:25
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Check for array not empty: any?
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251
any? isn't the same as not empty? in some cases.
>> [nil, 1].any?
=> true
>> [ni...
How to generate Class Diagram (UML) on Android Studio (IntelliJ Idea)
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110
I found a free plugin that can generate class diagrams with android studio.
It's called Simple...
How do I temporarily disable triggers in PostgreSQL?
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170
Alternatively, if you are wanting to disable all triggers, not just those on the USER table, y...