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45.arrauy diff.php
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45.arrauy diff.php
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<?php
echo "<u>array diff</u>";
$a1 = array(
"a" => "red",
"b" => "green",
"c" => "yellow",
"d" => "blue"
);
$a2 = array(
"e" => "cyan",
"f" => "green",
"g" => "magenta",
"h" => "blue"
);
$newArray = array_diff($a1, $a2);
echo "<pre>";
print_r ($newArray);
echo "</pre>";
echo "<br>";
echo "<br>";
echo "<u>array diff key</u>";
$a1 = array(
"a" => "red",
"b" => "green",
"c" => "yellow",
"d" => "blue"
);
$a2 = array(
"e" => "cyan",
"c" => "green",
"a" => "magenta",
"h" => "blue"
);
$newArray = array_diff_key($a1, $a2);
echo "<pre>";
print_r ($newArray);
echo "</pre>";
echo "<br>";
echo "<br>";
echo "<u>array diff assoc</u>";
$a3 = array(
"a" => "red",
"b" => "green",
"c" => "blue",
"d" => "yellow"
);
$b3 = array(
"a" => "red",
"f" => "green",
"u" => "blue",
"d" => "purple"
);
$newArray3 = array_diff_assoc($a3, $b3);
echo "<pre>";
print_r ($newArray3);
echo "</pre>";
echo "<br>";
echo "<br>";
echo "<u>array intersect uassoc</u>";
$a3 = array(
"a" => "red",
"b" => "green",
"c" => "blue",
"d" => "yellow"
);
$b3 = array(
"a" => "red",
"f" => "green",
"c" => "blue",
"d" => "purple"
);
$newArray3 = array_diff_uassoc($a3, $b3, 'compare');
echo "<pre>";
print_r ($newArray3);
echo "</pre>";
echo "<br>";
echo "<br>";
function compare($a, $b){
if ($a === $b) {
return 0;
} else{
return ($a > $b)? 1 : -1;
}
}
?>