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How to check if a string contains only digits in Java [duplicate]
... all be "true"
System.out.println("1".matches(regex));
System.out.println("12345".matches(regex));
System.out.println("123456789".matches(regex));
// negative test cases, should all be "false"
System.out.println("".matches(regex));
System.out.println("foo".matches(regex));
System.out.println("aa123...
Why are functions and methods in PHP case-insensitive?
Functions and methods in PHP are case-insensitive as illustrated in the following example.
2 Answers
...
Choosing Java vs Python on Google App Engine
...other languages perched on top of the JVM too, so it's THE way to run e.g. PHP or Ruby code on App Engine); the Python App Engine team however does have the advantage of having on board Guido van Rossum, the inventor of Python and an amazingly strong engineer.
In terms of flexibility, the Java engi...
How to split a string in Java
...}
}
public static void main(String[] args) {
checkString("123-4567");
checkString("foo-bar");
checkString("123-");
checkString("-4567");
checkString("123-4567-890");
}
}
As the pattern is fixed in this instance, it can be compiled in advance and...
PHP multidimensional array search by value
... or just use == instead ===.
Based on angoru answer. In later versions of PHP (>= 5.5.0) you can use one-liner.
$key = array_search('100', array_column($userdb, 'uid'));
Here is documentation: http://php.net/manual/en/function.array-column.php.
...
Vertical (rotated) text in HTML table
...enn: Well, yes, VB.NET code depends on VB.NET but you can do the same with PHP or Phyton or Ruby or whater :) By the way, convert it to C# and you can let it run on mono for Linux or Mac or Solaris.
– Stefan Steiger
Sep 2 '13 at 13:56
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What's the most efficient test of whether a PHP string ends with another string?
The standard PHP way to test whether a string $str ends with a substring $test is:
13 Answers
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How can I check if a URL exists via PHP?
How do I check if a URL exists (not 404) in PHP?
22 Answers
22
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MySQL vs MySQLi when using PHP [closed]
... page dedicated to help choosing between mysql, mysqli and PDO at
http://php.net/manual/en/mysqlinfo.api.choosing.php and
http://www.php.net/manual/en/mysqlinfo.library.choosing.php
The PHP team recommends mysqli or PDO_MySQL for new development:
It is recommended to use either the mysqli or...
What does “zend_mm_heap corrupted” mean
...al and error, I found that if I increase the output_buffering value in the php.ini file, this error goes away
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