PHP Bug #63217 Benchmark Script

php_bug63217_benchmark.php

<?php

// See https://github.com/php/php-src/pull/3351

$arr = [
    "foo" => true,
    "foobar" => 3,
    "elePHPant" => "qux",
    "long_key_name" => "something contrived",
    "123" => 76,
    "001234" => null,
    "6276372623" => "another"
];

$start = microtime(true);

for ($i = 0; $i < 30000000; $i++) {
  
    $foo = $arr["foo"];
    $arr["foo"] = $foo;
    $exists = isset($arr["foo"]);
   
    $foobar = $arr["foobar"];
    $arr["foobar"] = $foobar;
    $exists = isset($arr["foobar"]);
   
    $elePHPant = $arr["elePHPant"];
    $arr["elePHPant"] = $elePHPant;
    $exists = isset($arr["elePHPant"]);
    
    $long_key_name = $arr["long_key_name"];
    $arr["long_key_name"] = $long_key_name;
    $exists = isset($arr["long_key_name"]);

    $low_ascii_codepoint = $arr["!#"];
    $arr["!#"] = $low_ascii_codepoint;
    $exists = isset($arr["!#"]);
}

$end = microtime(true);

echo basename(PHP_BINARY), ": ", $end - $start, "s", PHP_EOL;