Online PHP editor | rfc for TbQ9U

@ 2024-02-12T15:36:33Z

<?php

// Run a million cycles for the profile averages.
$cycles = 1000000; 

// Setup.
define( 'WP_PLUGIN_DIR', 'absolute/path/to/the/plugins/dir' );
$plugin             = 'plugin/plugin.php';
$plugins_dir        = trailingslashit( WP_PLUGIN_DIR );
$plugins_dir_strlen = strlen( $plugins_dir );

// Polyfills.
function trailingslashit( $value ) {
	return untrailingslashit( $value ) . '/';
}
function untrailingslashit( $value ) {
	return rtrim( $value, '/\\' );
}


// Test str_replace().
$start_time = microtime( true );
for ( $i = 1; $i <= $cycles; $i++ ) {
    $plugin_file = str_replace( $plugins_dir, '', $plugin );
}
$end_time = microtime( true );
$total_time = ( $end_time - $start_time ) * 1000000.0;
printf( "Ran str_replace() in %s microseconds average\n",
    number_format( $total_time / $cycles, 4 )
);

// Test substr().
$start_time = microtime( true );
for ( $i = 1; $i <= $cycles; $i++ ) {
    $plugin_file = substr( $plugin, $plugins_dir_strlen );
}
$end_time = microtime( true );
$total_time = ( $end_time - $start_time ) * 1000000.0;
printf( "Ran substr() in %s microseconds average\n",
    number_format( $total_time / $cycles, 4 )
);

Output for git.master: Ran str_replace() in 0.0493 microseconds average Ran substr() in 0.0269 microseconds average
Output for git.master_jit: Ran str_replace() in 0.0543 microseconds average Ran substr() in 0.0235 microseconds average
Output for rfc.property-hooks: Ran str_replace() in 0.0544 microseconds average Ran substr() in 0.0238 microseconds average

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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2016-08-14 Arrow functions - withdrawn
2016-05-29 array_change_keys() - withdrawn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2016-03-16 Typed Properties - superseded in favor of Typed Properties 2.0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2015-05-01 Short Closures - declined / withdrawn in favor of Arrow Functions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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