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Send attachments with PHP Mail()?

... I agree with @MihaiIorga in the comments – use the PHPMailer script. You sound like you're rejecting it because you want the easier option. Trust me, PHPMailer is the easier option by a very large margin compared to trying to do it yourself with PHP's built-in mail() function...
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sed: print only matching group

...it with a 2nd grep. # To extract \1 from /xx([0-9]+)yy/ $ echo "aa678bb xx123yy xx4yy aa42 aa9bb" | grep -Eo 'xx[0-9]+yy' | grep -Eo '[0-9]+' 123 4 # To extract \1 from /a([0-9]+)b/ $ echo "aa678bb xx123yy xx4yy aa42 aa9bb" | grep -Eo 'a[0-9]+b' | grep -Eo '[0-9]+' 678 9 ...
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Checking if a string can be converted to float in Python

... ------------ print(isfloat("")) False print(isfloat("1234567")) True print(isfloat("NaN")) True nan is also float print(isfloat("NaNananana BATMAN")) False print(isfloat("123.456")) True print(isfloat("123.E4")) ...
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PHP - Check if two arrays are equal

... in different order, using $a == $b or $a === $b fails, for example: <?php (array("x","y") == array("y","x")) === false; ?> That is because the above means: array(0 => "x", 1 => "y") vs. array(0 => "y", 1 => "x"). To solve that issue, use: <?php function array_equal($a...
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PHP Sort a multidimensional array by element containing date

...compare")), so that usort() knows it's a class function/method. See also: php.net/manual/en/… – Ferdinand Beyer May 26 '10 at 16:26 ...
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What does -> mean in Python function definitions?

...versions. According to this, the example you've supplied: def f(x) -> 123: return x will be forbidden in the future (and in current versions will be confusing), it would need to be changed to: def f(x) -> int: return x for it to effectively describe that function f returns an ob...
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SQL query for finding records where count > 1

...p int(11) not null, dt date not null ); insert into payment values (1,123,55555,'2009-12-12'), (1,123,66666,'2009-12-12'), (1,123,77777,'2009-12-13'), (2,456,77777,'2009-12-14'), (2,456,77777,'2009-12-14'), (2,789,77777,'2009-12-14'), (2,789,77777,'2009-12-14'); select foo.user_id, foo.cnt fro...
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How do I see the extensions loaded by PHP?

It's got to be somewhere in the phpinfo() dump, but I just don't know where. Is it supposed to be under the "Additional Modules" section? Somewhere else? I'm trying to figure out why some extensions don't appear to be loaded, but I don't even know where I should be looking. ...
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Convert a date format in PHP

...totime($originalDate)); (See the strtotime and date documentation on the PHP site.) Note that this was a quick solution to the original question. For more extensive conversions, you should really be using the DateTime class to parse and format :-) ...
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How to use a switch case 'or' in PHP

Is there a way of using an 'OR' operator or equivalent in a PHP switch? 10 Answers 10 ...