Apart from the normal variables in PHP, which we write like $a<\/b>, there is also a variable variable which is written like $$a<\/b>. <\/p>\n
The problem is when someone wants to search what does this double dollar mean, they do not know how to search. Well searching will be a lot easier if they search by variable variables in PHP<\/b>, and the best resource as always is at php.net<\/a>.<\/p>\n To give a short explanation here it is used to give variable \/ dynamic names to variables.<\/p>\n Lets see a quick example. Say a value increases by a fixed amount everyday of the week. To enter and output the value for each day the code can be like –<\/p>\n If the fixed amount changes later we need to just change the line $i+=2; to maybe say $i+=5; and that would be sufficient. No need to change each day individually.<\/p>\n","protected":false},"excerpt":{"rendered":" Apart from the normal variables in PHP, which we write like $a, there is also a variable variable which is written like $$a. The problem is when someone wants to search what does this double dollar mean, they do not know how to search. Well searching will be a lot easier if they search by… Continue reading Double Dollar Or Variable Variables In PHP<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[57],"class_list":["post-53","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-php","entry"],"_links":{"self":[{"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/posts\/53","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/comments?post=53"}],"version-history":[{"count":0,"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/posts\/53\/revisions"}],"wp:attachment":[{"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/media?parent=53"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/categories?post=53"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/codeboss.in\/web-funda\/wp-json\/wp\/v2\/tags?post=53"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}$dyn = array(\"Sunday\",\"Monday\",\"Tuesday\",\"Wednesday\",\"Thursday\", \"Friday\",\"Saturday\");
$i=0;
foreach($dyn as $eachDyn){
$$eachDyn = $i;
$i+=2;
}
foreach($dyn as $eachDyn){
echo $eachDyn .\" = \".$$eachDyn;
}
<\/pre>\n