PHP compares two arrays element for element for equality. Two arrays are considered equal when they have the same number of elements, and for each element key and value both match. Test code: <?php $cmp = array( array(array(1), array(1... Outputs: array(1) { [0]=> int(1) } array(2)...

Use show create table <tablename> : mysql> show create table my_test_table; +------... Select from information_schema.table_constraints and information_schema.key_column_usage mysql> select * from information_schema.table_cons...

This is a more generic version, which can be expanded to accommodate additional file signatures. import java.io.*; import java.util.*; pu...

The tags <c:if> The <c:if> tag may be used with or without body content: <!-- Without body content, used to export vari... In my opinion, the version without body content is pretty much useless (the <c:set> tag is a lot more meaningful for this purpose). If body content exists, it is inserted into the page if the testCondition is true . Optional attributes var and scope may be specified. If var is specified, a variable whose name is the value of var is exported to the associated scope ( pageScope if no scope is specified). The type of the exported variable is Boolean and its value is the value of the testCondition . <c:choose>, <c:when>, <c:otherwise> These tags imitate the Java control structure if...else...

This XML signature validator comes from the Apache XML Security project. It validates the signature according to the core validation processing rules . It does not verify that the key used to generate the signature is a trusted key. You can override the KeySelector class to make sure that the signing key is from a trusted store. import javax.xml.crypto.*; import javax.xml.cry...

This program demonstrates the use of the java.nio package to implement a single thread echo server. import java.io.IOException; import java.net.Ine...

This is an Ant custom task to merge Properties files I lifted from http://marc.info/?l=ant-user&m=106442688632164&w=2 , with some minor bug fixes. Example usage: <taskdef name="mergeProperty" classname="ant.task.... Implementation: package ant.task.addon; import java.io.Buff...

There is a open source project named [ini4j] for processing Windows .ini configuration files. However, I found it an overkill for my purposes. So here is my simple implementation of a .ini parser. It mimics the standard java.util.Properties class with enhancements to get and set properties by section name. There are only a few simple rules: Leading and trailing spaces are trimmed from section names, property names and property values. Section names are enclosed between [ and ] . Properties following a section header belong to that section Properties defined before the appearance of any section headers are considered global properties and should be set and get with no section names. You can use either equal sign ( = ) or colon ( : )...

When you use a TreeMap , the entries in the Map is sorted by the keys. This following code outputs the elements of the map sorted by value. import java.util.*; @SuppressWarnings("... The output is: key: e, value: be key: g, value: by key:...