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Are arrays in PHP copied as value or as reference to new variables, and when passed to functions?
...n array by reference.
And the given example :
<?php
$arr1 = array(2, 3);
$arr2 = $arr1;
$arr2[] = 4; // $arr2 is changed,
// $arr1 is still array(2, 3)
$arr3 = &$arr1;
$arr3[] = 4; // now $arr1 and $arr3 are the same
?>
For the first part, the best way to be sure is to ...
C# Create New T()
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edited Jun 4 '16 at 18:33
Robert Harvey
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Creating an R dataframe row-by-row
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edited Feb 18 '19 at 2:37
Neil
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answered Sep 4...
How to create Drawable from resource
... JemsJems
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2
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How do I solve the INSTALL_FAILED_DEXOPT error?
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edited Nov 3 '14 at 4:54
answered Mar 17 '11 at 6:25
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How to check if smtp is working from commandline (Linux) [closed]
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rogerdpack
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answered Aug 16 '12 at 13:40
balanvbalanv
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How to mock ConfigurationManager.AppSettings with moq
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edited Jan 3 at 15:54
demo
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an...
Finding what methods a Python object has
...r, you can use this instead:
getattr( is intolerant of pandas style python3.6 abstract virtual sub-classes. This code does the same as above and ignores exceptions.
import pandas as pd
df = pd.DataFrame([[10, 20, 30], [100, 200, 300]],
columns=['foo', 'bar', 'baz'])
def get_...
How can I add new keys to a dictionary?
...
3536
d = {'key': 'value'}
print(d)
# {'key': 'value'}
d['mynewkey'] = 'mynewvalue'
print(d)
# {'ke...
Getting “Lock wait timeout exceeded; try restarting transaction” even though I'm not using a transac
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Jeff Tian
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answered Apr 29 '11 at 20:54
MarkRMarkR
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