php keys of array
$array = array(0 => 100, "cor" => "vermelho");
print_r(array_keys($array));
$array = array("azul", "vermelho", "verde", "azul", "azul");
print_r(array_keys($array, "azul"));
$array = array("cor" => array("azul", "vermelho", "verde"),
"tamanho" => array("pequeno", "medio", "grande"));
print_r(array_keys($array));array associativo php
<?php
/*
There are 3 Types of array in php
1. Indexed arrays - Arrays with a numeric index
2. Associative arrays - Arrays with named keys
3. Multidimensional arrays - Arrays containing one or more arrays
This is the second one - Associative arrays
*/
$age = array("Samy"=>"35", "Naveen"=>"37", "Amit"=>"43");
echo "Mr.Samy is " . $age['Peter'] . " years old.";
?>array key value php
<?php
$age=array("Peter"=>"35","Ben"=>"37","Joe"=>"43");
foreach($age as $x=>$x_value)
{
echo "Key=" . $x . ", Value=" . $x_value;
echo "<br>";
}
?>php array
<?php
$array = array(
"foo" => "bar",
42 => 24,
"multi" => array(
"dimensional" => array(
"array" => "foo"
)
)
);
var_dump($array["foo"]);
var_dump($array[42]);
var_dump($array["multi"]["dimensional"]["array"]);
?>php variables as keys in arrays
$id = 1;
$age = 2;
$sort = "id"; // or "age";
$Key = $$sort;
$arr = array($Key => 'string');
print_r($arr);Copyright © 2021 Codeinu
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