cvs: /phpdoc/language types.sgml

cslawi Sun Nov 14 18:43:01 1999 EDT Modified files: /phpdoc/language types.sgml Log: Added note about referencing multidimensional arrays in strings. Index: phpdoc/language/types.sgml diff -u phpdoc/language/types.sgml:1.5 phpdoc/language/types.sgml:1.6 --- phpdoc/language/types.sgml:1.5 Sun Nov 14 06:58:50 1999 +++ phpdoc/language/types.sgml Sun Nov 14 18:43:00 1999 @@ -234,6 +234,32 @@ </programlisting> </informalexample></para> + <note> + <para> + It is not possible to reference multidimensional arrays directly + within strings. For instance, the following will not have the + desired result: + <informalexample> + <programlisting role="php"> +$a[3]['bar'] = 'Bob'; +echo "This won't work: $a[3][bar]"; + </programlisting> + </informalexample> + + In PHP3, the above will output + <computeroutput>This won't work: Array[bar]</computeroutput>. The string + concatenation operator, however, can be used to overcome this: + + <informalexample> + <programlisting role="php"> +$a[3]['bar'] = 'Bob'; +echo "This will work: " . $a[3][bar]; + </programlisting> + </informalexample> + + </para> + </note> + <para> You can "fill up" multi-dimensional arrays in many ways, but the trickiest one to understand is how to use the