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PHP regular expressions: No ending delimiter '^' found in
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PHP regex strings need delimiters. Try:
$numpattern="/^([0-9]+)$/";
Also, note that you have a lower case o, not a zero. In addition, if you're just validating, you don't need the capturing group, and can simplify the regex to /^\d+$/.
Example: http://ideone.com/Ec3zh
See also:...
How to count items in a Go map?
...ed from the now-retired SO documentation:
m := map[string]int{}
len(m) // 0
m["foo"] = 1
len(m) // 1
If a variable points to a nil map, then len returns 0.
var m map[string]int
len(m) // 0
Excerpted from Maps - Counting map elements. The original author was Simone Carletti. Attribution det...
What is the Bash equivalent of Python's pass statement
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answered Mar 10 '10 at 23:55
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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Left padding a String with Zeros [duplicate]
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20 Answers
20
Active
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Cancellation token in Task constructor: why?
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Eliahu Aaron
3,15122 gold badges2020 silver badges3232 bronze badges
answered Sep 14 '10 at 21:38
Max GalkinMax Galkin
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onTouchListener warning: onTouch should call View#performClick when a click is detected
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SeckoSecko
6,72044 gold badges2727 silver badges3535 bronze badges
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How can I remove 3 characters at the end of a string in php?
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Just do:
echo substr($string, 0, -3);
You don't need to use a strlen call, since, as noted in the substr docs:
If length is given and is negative, then that many characters will be omitted from the end of string
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How can I create a Set of Sets in Python?
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answered May 9 '11 at 0:18
a3nma3nm
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Is there a C# type for representing an integer Range?
...need to store an integer range. Is there an existing type for that in C# 4.0?
10 Answers
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Angularjs if-then-else construction in expression
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Rafael Almeida
8,10666 gold badges3939 silver badges5757 bronze badges
answered May 16 '13 at 11:16
Andre GoncalvesAndr...