How to call a string in an array

Question

I could not find the syntax anywhere in the manual .. Why this syntax works and is there a link to the manual to show this is a correct naming for a variable.

$who = array("World", "universe");

echo "${who[0]}"; //i cant find this syntax 
echo "$who[0]"; //works
echo "{$who[0]}" ; //works
//echo "${who}[0]"; //cant call because this treats an array as a string
//echo "${who}[0]";//cant call because this treats an array as a string

I suggest you start reading the documentation of the tools you use. The alternative notations of variables ist listed in there. — arkascha, May 19 '18 at 22:12

Progrock · Answer 1 · 2018-05-19T22:23:16.983

Simpler:

<?php
$who = array("World", "universe");
echo $who[0];

The man page: http://php.net/manual/en/language.types.array.php

Variables in PHP are represented by a dollar sign followed by the name of the variable. The variable name is case-sensitive. Variable names follow the same rules as other labels in PHP. A valid variable name starts with a letter or underscore, followed by any number of letters, numbers, or underscores.

From: http://php.net/manual/en/language.variables.basics.php

How to call a string in an array

1 Answers1