{"id":1300,"date":"2018-01-19T19:22:40","date_gmt":"2018-01-19T19:22:40","guid":{"rendered":"http:\/\/goofy-trucks.flywheelsites.com\/arrays-101-page-2\/"},"modified":"2018-01-19T19:24:41","modified_gmt":"2018-01-19T19:24:41","slug":"arrays-101-page-2","status":"publish","type":"post","link":"https:\/\/phpbuilder.com\/arrays-101-page-2\/","title":{"rendered":"Arrays 101 Page 2"},"content":{"rendered":"
\n
\n
By Joshua Petrovich<\/div>\n
on April 24, 2003<\/div>\n<\/p><\/div>\n
\n
\nMulti-dimensional arrays. Sounds like it came from some 1950s Sci-Fi novel. Anywho, multi-dimensional arrays
\nare simply arrays within arrays. You remember eariler how I was putting variables into arrays? Well now I’m
\nstuffing arrays into arrays. For example, let’s say I run an on-line bookstore and I sell novels, kid’s books,
\nand magazines, and I put the names of those into arrays. In code, it’d look like:<\/div>\n
\n<\/p>\n

<?php
\n
\u00a0\u00a0\u00a0\u00a0$arrayNovels\u00a0<\/span>=\u00a0array(<\/span>\"Andromeda\u00a0Strain\"<\/span>,\u00a0<\/span>\"Rainbow\u00a0Six\"<\/span>,\u00a0<\/span>\"Lord\u00a0of\u00a0the\u00a0Rings\"<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0<\/span>$arrayKidBooks\u00a0<\/span>=\u00a0array(<\/span>\"Jack\u00a0and\u00a0Jill\"<\/span>,\u00a0<\/span>\"Clifford\u00a0the\u00a0Big\u00a0Red\u00a0Dog\"<\/span>,\u00a0<\/span>\"How\u00a0Stuff\u00a0Works\"<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0<\/span>$arrayMagazines\u00a0<\/span>=\u00a0array(<\/span>\"Motorcycle\u00a0World\"<\/span>,\u00a0<\/span>\"Guitar\u00a0One\"<\/span>,\u00a0<\/span>\"Car\u00a0and\u00a0Driver\"<\/span>);
\n
<\/span>?>
\n
<\/span>
\n<\/span>
\n<\/code><\/font><\/div>\n

\nNow this is fairly condensed, but I can stuff all three arrays into an array called
\n$arrayInventory<\/code>. Using what I’ve already talked about, this is how it’s done:\n<\/div>\n

<\/p>\n

<?php
\n
\u00a0\u00a0\u00a0\u00a0$arrayNovels\u00a0<\/span>=\u00a0array(<\/span>\"Andromeda\u00a0Strain\"<\/span>,\u00a0<\/span>\"Rainbow\u00a0Six\"<\/span>,\u00a0<\/span>\"Lord\u00a0of\u00a0the\u00a0Rings\"<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0<\/span>$arrayKidBooks\u00a0<\/span>=\u00a0array(<\/span>\"Jack\u00a0and\u00a0Jill\"<\/span>,\u00a0<\/span>\"Clifford\u00a0the\u00a0Big\u00a0Red\u00a0Dog\"<\/span>,\u00a0<\/span>\"How\u00a0Stuff\u00a0Works\"<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0<\/span>$arrayMagazines\u00a0<\/span>=\u00a0array(<\/span>\"Motorcycle\u00a0World\"<\/span>,\u00a0<\/span>\"Guitar\u00a0One\"<\/span>,\u00a0<\/span>\"Car\u00a0and\u00a0Driver\"<\/span>);<\/p>\n

\u00a0\u00a0\u00a0\u00a0<\/span>$arrayInventory\u00a0<\/span>=\u00a0array();
\n
\u00a0\u00a0\u00a0\u00a0<\/span>$arrayInventory<\/span>[<\/span>\"arrayNovels\"<\/span>]\u00a0=\u00a0<\/span>$arrayNovels<\/span>;\u00a0<\/span>\/\/\u00a0this\u00a0is\u00a0the\u00a0same\u00a0as\u00a0index\u00a00
\n
\u00a0\u00a0\u00a0\u00a0<\/span>$arrayInventory<\/span>[<\/span>\"arrayKidBooks\"<\/span>]\u00a0=\u00a0<\/span>$arrayKidBooks<\/span>;\u00a0<\/span>\/\/\u00a0this\u00a0is\u00a0the\u00a0same\u00a0as\u00a0index\u00a01
\n
\u00a0\u00a0\u00a0\u00a0<\/span>$arrayInventory<\/span>[<\/span>\"arrayMagazines\"<\/span>]\u00a0=\u00a0<\/span>$arrayMagazines<\/span>;\u00a0<\/span>\/\/\u00a0this\u00a0is\u00a0the\u00a0same\u00a0as\u00a0index\u00a02
\n
<\/span>?>
\n
<\/span>
\n<\/span>
\n<\/code><\/font><\/div>\n

\nSo now I can print them out using for-loops (assume that the above code is included):<\/div>\n
\n<\/p>\n

<?php
\n
\u00a0\u00a0\u00a0\u00a0$nSizeInv\u00a0<\/span>=\u00a0<\/span>count<\/span>(<\/span>$ArrayInventory<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0for(<\/span>$indexInv<\/span>=<\/span>0<\/span>;\u00a0<\/span>$indexInv\u00a0<\/span><\u00a0<\/span>$nSizeInv<\/span>;\u00a0<\/span>$indexInv<\/span>++)
\n
\u00a0\u00a0\u00a0\u00a0{
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(<\/span>$indexInv<\/span>==<\/span>0<\/span>)\u00a0<\/span>\/\/\u00a0remember\u00a0that\u00a0index\u00a00\u00a0is\u00a0the\u00a0array\u00a0for\u00a0novels
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$arrayNovels\u00a0<\/span>=\u00a0<\/span>$ArrayInventory<\/span>[<\/span>$index<\/span>];
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$nSizeNovels\u00a0<\/span>=\u00a0<\/span>count<\/span>(<\/span>$arrayNovels<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(<\/span>$indexNov<\/span>=<\/span>0<\/span>;\u00a0<\/span>$indexNov\u00a0<\/span><\u00a0<\/span>$nSizeNovels<\/span>;\u00a0<\/span>$indexNov<\/span>++)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$sNovel\u00a0<\/span>=\u00a0<\/span>$arrayNovels<\/span>[<\/span>$indexNov<\/span>];
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0print\u00a0<\/span>\"Novel:\u00a0$sNovel\"<\/span>;
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(<\/span>$indexInv<\/span>==<\/span>1<\/span>)\u00a0<\/span>\/\/\u00a0remember\u00a0that\u00a0index\u00a01\u00a0is\u00a0the\u00a0array\u00a0for\u00a0kid's\u00a0books
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$arrayKidsBooks\u00a0<\/span>=\u00a0<\/span>$ArrayInventory<\/span>[<\/span>$index<\/span>];
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$nSizeKbooks\u00a0<\/span>=\u00a0<\/span>count<\/span>(<\/span>$arrayKidsBooks<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(<\/span>$indexKbook<\/span>=<\/span>0<\/span>;\u00a0<\/span>$indexKbook\u00a0<\/span><\u00a0<\/span>$nSizeKbooks<\/span>;\u00a0<\/span>$indexKbook<\/span>++)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$sKidsBook\u00a0<\/span>=\u00a0<\/span>$arrayKidsBooks<\/span>[<\/span>$indexKbook<\/span>];
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0print\u00a0<\/span>\"Kids\u00a0book:\u00a0$sKidsbook\"<\/span>;
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0if(<\/span>$indexInv<\/span>==<\/span>2<\/span>)\u00a0<\/span>\/\/\u00a0remember\u00a0that\u00a0index\u00a02\u00a0is\u00a0the\u00a0array\u00a0for\u00a0magazines
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>{
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$arrayMagazines\u00a0<\/span>=\u00a0<\/span>$ArrayInventory<\/span>[<\/span>$index<\/span>];
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$nSizeMags\u00a0<\/span>=\u00a0<\/span>count<\/span>(<\/span>$arrayMagazines<\/span>);
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0for(<\/span>$indexMags<\/span>=<\/span>0<\/span>;\u00a0<\/span>$indexMags\u00a0<\/span><\u00a0<\/span>$nSizeMags<\/span>;\u00a0<\/span>$indexMags<\/span>++)
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0{
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span>$sMagazine\u00a0<\/span>=\u00a0<\/span>$arrayMagazines<\/span>[<\/span>$indexMags<\/span>];
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0print\u00a0<\/span>\"Magazine:\u00a0$sMagazine\"<\/span>;
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}
\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0}
\n
\u00a0\u00a0\u00a0\u00a0}
\n
<\/span>?>
\n
<\/span>
\n<\/span>
\n<\/code><\/font><\/div>\n

\nSo there you have it. You can now create, fill, and use arrays for all your scripting needs. Drop me a line at
\nthe address above if you have a specific question about arrays or PHP in general. Thanks, and may the
\ncode be with you.\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

If you’ve ever created large scripts that require many variables (sometimes nearly 100), you know what it’s<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-1300","post","type-post","status-publish","format-standard","hentry","category-tutorials"],"_links":{"self":[{"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/posts\/1300","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/comments?post=1300"}],"version-history":[{"count":1,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/posts\/1300\/revisions"}],"predecessor-version":[{"id":3192,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/posts\/1300\/revisions\/3192"}],"wp:attachment":[{"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/media?parent=1300"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/categories?post=1300"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/tags?post=1300"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}