Inserting Associative Array Elements in PHP
However, inserting elements of associative arrays will not work like this:
<?php
$arr = ['a'=>1, 'b'=>2, 'c'=>3];
echo "xxx $arr['a'] yyy"; // does not work
?>
To insert such elements, they must be wrapped in curly braces:
<?php
$arr = ['a'=>1, 'b'=>2, 'c'=>3];
echo "xxx {$arr['a']} yyy";
?>
Alternatively, you can remove the single quotes from the key during insertion:
<?php
$arr = ['a'=>1, 'b'=>2, 'c'=>3];
echo "xxx $arr[a] yyy";
?>
Sometimes it makes sense to simply write an array element into a variable in order to then easily insert the variable into the string:
<?php
$arr = ['a', 'b', 'c'];
$elem = $arr['a'];
echo "xxx $elem yyy";
?>
Simplify the following code:
<?php
$arr = ['a' => 1, 'b' => 2, 'c' => 3];
echo 'text ' . $arr['a'] . ' text ' . $arr['b'] . ' text';
?>
