Online PHP editor | rfc for qFKvT

@ 2014-10-22T08:12:47Z

<?php

ini_set( 'display_errors', 1 );
error_reporting( E_ALL );

//  Make a bit, honkin test array
//  You may need to adjust this depth to avoid memory limit errors
$testArray = fillArray( 0, 5 );

//  Time json encoding
$start = microtime( true );
json_encode( $testArray );
$jsonTime = microtime( true ) - $start;
echo "JSON encoded in $jsonTime seconds<br>";

//  Time serialization
$start = microtime( true );
serialize( $testArray );
$serializeTime = microtime( true ) - $start;
echo "PHP serialized in $serializeTime seconds<br>";

//  Compare them
if ( $jsonTime < $serializeTime )
{
    echo "json_encode() was roughly " . number_format( ($serializeTime / $jsonTime - 1 ) * 100, 2 ) . "% faster than serialize()";
}
else if ( $serializeTime < $jsonTime )
{
    echo "serialize() was roughly " . number_format( ($jsonTime / $serializeTime - 1 ) * 100, 2 ) . "% faster than json_encode()";
} else {
    echo 'Unpossible!';
}

function fillArray( $depth, $max )
{
    static $seed;
    if ( is_null( $seed ) )
    {
        $seed = array( 'a', 2, 'c', 4, 'e', 6, 'g', 8, 'i', 10 );
    }
    if ( $depth < $max )
    {
        $node = array();
        foreach ( $seed as $key )
        {
            $node[$key] = fillArray( $depth + 1, $max );
        }
        return $node;
    }
    return 'empty';
}

Output for git.master: JSON encoded in 0.0060369968414307 seconds PHP serialized in 0.0061471462249756 seconds json_encode() was roughly 1.82% faster than serialize()
Output for git.master_jit: JSON encoded in 0.0055451393127441 seconds PHP serialized in 0.0062961578369141 seconds json_encode() was roughly 13.54% faster than serialize()
Output for rfc.property-hooks: JSON encoded in 0.0070888996124268 seconds PHP serialized in 0.006788969039917 seconds serialize() was roughly 4.42% faster than json_encode()

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2020-03-21 RFC: Is_Literal - declined
2020-12-04 Enumerations - included in PHP 8.1
2018-06-15 Typed Properties v2 - implemented in PHP 7.4
2016-08-12 Object typehint - included in PHP 7.2
2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn
2016-04-19 Lexical scope support for anonymous classes - suspended
2016-04-17 Functional Interfaces - declined
2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0
2015-08-27 Callable Prototypes - declined
2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions
2015-02-18 Scalar type hints v5 - included in PHP 7
2015-02-14 Union Types - declined
2013-09-22 Anonymous classes - included in PHP 7

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