{"id":1355,"date":"2018-01-19T19:22:44","date_gmt":"2018-01-19T19:22:44","guid":{"rendered":"http:\/\/goofy-trucks.flywheelsites.com\/image-creation-with-php\/"},"modified":"2018-01-19T19:24:43","modified_gmt":"2018-01-19T19:24:43","slug":"image-creation-with-php","status":"publish","type":"post","link":"https:\/\/phpbuilder.com\/image-creation-with-php\/","title":{"rendered":"Image Creation With PHP"},"content":{"rendered":"
\n
\n
By Rasmus Lerdorf<\/div>\n
on July 30, 2000<\/div>\n<\/p><\/div>\n
\"picture<\/p>\n
\nMany people do not realize that PHP can be used to create non-HTML data. This is
\nespecially useful for creating images on the fly. It could be simple bar graphs that display
\ndata from a database, or even simpler, just a way to create graphic buttons on the fly.\n<\/div>\n
\nWhen I am putting up a site quickly, I find that it is a waste of my time to sit and fiddle
\nwith an image editor to create nice-looking graphical buttons and menus. Instead I will pick a
\nnice TTF font and use the following simple script which I usually call ‘button.php3’:<\/div>\n
\n<\/p>\n

<?php
\n
\u00a0\u00a0Header<\/span>(<\/span>\"Content-type:\u00a0image\/gif\"<\/span>);
\n
\u00a0\u00a0if(!isset(<\/span>$s<\/span>))\u00a0<\/span>$s<\/span>=<\/span>11<\/span>;
\n
\u00a0\u00a0<\/span>$size\u00a0<\/span>=\u00a0<\/span>imagettfbbox<\/span>(<\/span>$s<\/span>,<\/span>0<\/span>,<\/span>\"\/fonts\/TIMES.TTF\"<\/span>,<\/span>$text<\/span>);
\n
\u00a0\u00a0<\/span>$dx\u00a0<\/span>=\u00a0<\/span>abs<\/span>(<\/span>$size<\/span>[<\/span>2<\/span>]-<\/span>$size<\/span>[<\/span>0<\/span>]);
\n
\u00a0\u00a0<\/span>$dy\u00a0<\/span>=\u00a0<\/span>abs<\/span>(<\/span>$size<\/span>[<\/span>5<\/span>]-<\/span>$size<\/span>[<\/span>3<\/span>]);
\n
\u00a0\u00a0<\/span>$xpad<\/span>=<\/span>9<\/span>;
\n
\u00a0\u00a0<\/span>$ypad<\/span>=<\/span>9<\/span>;
\n
\u00a0\u00a0<\/span>$im\u00a0<\/span>=\u00a0<\/span>imagecreate<\/span>(<\/span>$dx<\/span>+<\/span>$xpad<\/span>,<\/span>$dy<\/span>+<\/span>$ypad<\/span>);
\n
\u00a0\u00a0<\/span>$blue\u00a0<\/span>=\u00a0<\/span>ImageColorAllocate<\/span>(<\/span>$im<\/span>,\u00a0<\/span>0x2c<\/span>,<\/span>0x6D<\/span>,<\/span>0xAF<\/span>);
\n
\u00a0\u00a0<\/span>$black\u00a0<\/span>=\u00a0<\/span>ImageColorAllocate<\/span>(<\/span>$im<\/span>,\u00a0<\/span>0<\/span>,<\/span>0<\/span>,<\/span>0<\/span>);
\n
\u00a0\u00a0<\/span>$white\u00a0<\/span>=\u00a0<\/span>ImageColorAllocate<\/span>(<\/span>$im<\/span>,\u00a0<\/span>255<\/span>,<\/span>255<\/span>,<\/span>255<\/span>);
\n
\u00a0\u00a0<\/span>ImageRectangle<\/span>(<\/span>$im<\/span>,<\/span>0<\/span>,<\/span>0<\/span>,<\/span>$dx<\/span>+<\/span>$xpad<\/span>-<\/span>1<\/span>,<\/span>$dy<\/span>+<\/span>$ypad<\/span>-<\/span>1<\/span>,<\/span>$black<\/span>);
\n
\u00a0\u00a0<\/span>ImageRectangle<\/span>(<\/span>$im<\/span>,<\/span>0<\/span>,<\/span>0<\/span>,<\/span>$dx<\/span>+<\/span>$xpad<\/span>,<\/span>$dy<\/span>+<\/span>$ypad<\/span>,<\/span>$white<\/span>);
\n
\u00a0\u00a0<\/span>ImageTTFText<\/span>(<\/span>$im<\/span>,\u00a0<\/span>$s<\/span>,\u00a0<\/span>0<\/span>,\u00a0(int)(<\/span>$xpad<\/span>\/<\/span>2<\/span>)+<\/span>1<\/span>,\u00a0<\/span>$dy<\/span>+(int)(<\/span>$ypad<\/span>\/<\/span>2<\/span>),\u00a0<\/span>$black<\/span>,\u00a0<\/span>\"\/fonts\/TIMES.TTF\"<\/span>,\u00a0<\/span>$text<\/span>);
\n
\u00a0\u00a0<\/span>ImageTTFText<\/span>(<\/span>$im<\/span>,\u00a0<\/span>$s<\/span>,\u00a0<\/span>0<\/span>,\u00a0(int)(<\/span>$xpad<\/span>\/<\/span>2<\/span>),\u00a0<\/span>$dy<\/span>+(int)(<\/span>$ypad<\/span>\/<\/span>2<\/span>)-<\/span>1<\/span>,\u00a0<\/span>$white<\/span>,\u00a0<\/span>\"\/fonts\/TIMES.TTF\"<\/span>,\u00a0<\/span>$text<\/span>);
\n
\u00a0\u00a0<\/span>ImageGif<\/span>(<\/span>$im<\/span>);
\n
\u00a0\u00a0<\/span>ImageDestroy<\/span>(<\/span>$im<\/span>);
\n
<\/span>?>
\n
<\/span>
\n<\/span>
\n<\/code><\/font><\/div>\n

\nIt is very important to realize that you cannot put any HTML tags in this file. There should also not
\nbe any spaces or blank lines before or after the <? and ?> tags. If you are getting a broken image
\nusing this script, chances are you have a stray carriage return somewhere outside the PHP tags.<\/div>\n<\/div>\n

<\/p>\n

\n
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| <\/div>\n
2<\/a> <\/div>\n
Next Page \u00bb<\/a><\/div>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

By Rasmus Lerdorf on July 30, 2000 Many people do not realize that PHP can be used to create non-HTML data. This is especially useful for creating images on the fly. It could be simple bar graphs that display data from a database, or even simpler, just a way to… <\/a><\/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-1355","post","type-post","status-publish","format-standard","hentry","category-tutorials"],"_links":{"self":[{"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/posts\/1355","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=1355"}],"version-history":[{"count":1,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/posts\/1355\/revisions"}],"predecessor-version":[{"id":2176,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/posts\/1355\/revisions\/2176"}],"wp:attachment":[{"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/media?parent=1355"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/categories?post=1355"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/phpbuilder.com\/wp-json\/wp\/v2\/tags?post=1355"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}