PHP/String/String Interpolation

Adding "s" to the end of the variable name

 
<?php
            $food = "grapefruit";
            print "These ${food}s aren"t ripe yet.";
            print "These {$food}s aren"t ripe yet.";
    ?>

Embedded Conditionals

 
<?php
    $value = 2;
    if($value > 0) {
        if($value <= 10) {
            echo "The $value variable is between 1 and 10.";
        } else {
            if($value <= 20) {
                echo "The $value variable is between 1 and 20.";
            } else {
                echo "The $value variable is greater than 20";
            }
        }
    }
?>

Embedding numbers and strings into other strings

 
<?php 
$arr = array(1 => "abc","abc" => 123.5,array(1,2,3)); 
$key = "abc"; 
echo "First value = $arr[1]\n"; 
echo "Second value = $arr[abc]\n"; 
echo "Third value = $arr[2]\n"; 
echo "Third value = $arr[2][2]\n"; 
echo "Second value = ${arr["abc"]}\n"; 
echo "Second value = ${arr["abc"]}\n"; 
echo "Second value = ${arr[$key]}\n"; 
?> 

<?php 
$arr = array( 
    "abc" => "abc", 
    "def" => 123.5, 
    "ghi" => array(1,2,3) 
); 
$key = "abc"; 
$obj = (object) $arr; 
echo "First value = $obj->abc\n"; 
echo "Second value = $obj->def\n"; 
echo "Third value = $obj->ghi\n"; 
?>

Embed variables directly into strings

 
<?php
$a = 10;
$b = 15.7;
echo "The value of \$a is $a and the value of \$b is $b\n";
echo "The value of \$a is $a and the value of \$b is $b\n";
?>

Interpolating with curly braces

 
<?
$preparation = "Braise";
$meat = "Beef";
print "{$preparation} and $meat";
?>