PHP Classes

PHP Associative Array Key Case Insensitive: Store associative array with case insensitive keys

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Version License PHP version Categories
associative-array 1.0.2GNU General Publi...5.5PHP 5, Data types
Description 

Author

Christian Vigh

This class can store associative array with case insensitive keys.

It implements the array access interface so it can store array entries using keys that are equivalent regardless of the case.

The class stores and retrieve values for array entries regardless of the case of the entries.

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Example

<?php
    /***********************************************************************************************************

        The following example demonstrates the use of the AssociativeArray class.
        This example will throw an exception when trying to access undefined index 'ZZ'.

     ***********************************************************************************************************/
    require ( 'AssociativeArray.phpclass' ) ;

    if ( php_sapi_name ( ) != 'cli' )
        echo ( "<pre>" ) ;

    $array = new AssociativeArray ( [ 'A' => 'Value of A', 'B' => 'Value of B', 'D' => 'Value of D', 'C' => 'Value of C' ] ) ;

    echo "Getting value of array['A'] : " . $array [ 'A' ] . "\n" ;
    echo "Getting value of array['b'] : " . $array [ 'b' ] . "\n" ;

    echo "********** Unsorted array contents :\n" ;
    print_r ( $array -> ToArray ( ) ) ;

    echo "********** Sorted array contents :\n" ;
    $array -> ksort ( ) ;
    print_r ( $array -> ToArray ( ) ) ;


    if ( isset ( $array [ 'ZZ' ] ) )
        echo "Index 'ZZ' exists\n" ;
    else
        echo "Index 'ZZ' DOES NOT exist\n" ;

    // The following line of code will throw an exception, because index 'ZZ' is not defined
    //echo "Getting value of (inexisting) array['ZZ'] : " . $array [ 'ZZ' ] . "\n" ;




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