Online PHP editor | perf for qEVBi

@ 2025-04-16T13:03:11Z

<?php


class Master {
	/** @var static $instance - singleton each class into its own! */
	protected static $instance;

	/**
	 * @return static
	 */
	final public static function getInstance() {
		if(static::$instance === null) {
			static::$instance = new static();
		}
		return static::$instance;
	}


	protected function __construct() {
		echo "construct".__CLASS__." as ".static::class . " via " . self::class.PHP_EOL;
	}
}

class Slave extends Master {
	/** @var static $instance - singleton each class into its own! */
	protected static $instance;

	protected function __construct() {
		echo "construct".__CLASS__." as ".static::class . " via " . self::class.PHP_EOL;
	}
}

class AnotherSlave extends Slave {
	/** @var static $instance - singleton each class into its own! */
	protected static $instance;

	protected function __construct() {
		echo "construct".__CLASS__." as ".static::class . " via " . self::class.PHP_EOL;
	}
}

class FailedSlave extends Slave {
//	protected static $instance;
	protected function __construct() {
		echo "construct".__CLASS__." as ".static::class . " via " . self::class.PHP_EOL;
	}
}


$master = Master::getInstance();
$master = Master::getInstance();
$master = Master::getInstance();

$slave = Slave::getInstance();
$slave = Slave::getInstance();
$slave = Slave::getInstance();

$anotherSlave = AnotherSlave::getInstance();
$anotherSlave = AnotherSlave::getInstance();
$anotherSlave = AnotherSlave::getInstance();

$failedSlave = FailedSlave::getInstance();
$failedSlave = FailedSlave::getInstance();
$failedSlave = FailedSlave::getInstance();

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

Version	System time (s)	User time (s)	Memory (MiB)
8.5.0	0.011	0.010	20.02
8.4.15	0.002	0.000	14.05
8.4.14	0.012	0.009	17.64
8.4.13	0.014	0.006	17.95
8.4.12	0.011	0.008	20.59
8.4.11	0.005	0.004	18.98
8.4.10	0.011	0.010	17.73
8.4.9	0.008	0.012	17.87
8.4.8	0.011	0.008	17.74
8.4.7	0.008	0.008	17.95
8.4.6	0.037	0.006	17.67
8.4.5	0.033	0.006	17.73
8.4.4	0.025	0.009	17.45
8.4.3	0.036	0.012	17.30
8.4.2	0.039	0.012	17.52
8.4.1	0.038	0.011	17.39
8.3.28	0.003	0.000	14.05
8.3.27	0.010	0.011	16.77
8.3.26	0.014	0.005	16.84
8.3.25	0.013	0.006	19.11
8.3.24	0.017	0.003	16.58
8.3.23	0.011	0.008	16.67
8.3.22	0.013	0.006	16.50
8.3.21	0.008	0.007	16.54
8.3.20	0.038	0.006	16.68
8.3.19	0.044	0.006	16.52
8.3.18	0.037	0.009	16.46
8.3.17	0.036	0.011	16.68
8.3.16	0.043	0.003	16.57
8.3.15	0.039	0.010	16.70
8.3.14	0.041	0.008	16.38
8.3.13	0.030	0.012	16.77
8.3.12	0.030	0.010	16.68
8.3.11	0.035	0.007	16.79
8.3.10	0.040	0.007	16.39
8.3.9	0.036	0.011	16.29
8.3.8	0.040	0.010	16.51
8.3.7	0.040	0.009	16.39
8.3.6	0.031	0.009	16.55
8.3.5	0.036	0.012	16.60
8.3.4	0.041	0.008	17.41
8.3.3	0.031	0.005	17.34
8.3.2	0.030	0.006	17.54
8.3.1	0.025	0.006	17.48
8.3.0	0.020	0.008	17.59
8.2.29	0.010	0.009	20.69
8.2.28	0.029	0.008	16.88
8.2.27	0.031	0.009	16.32
8.2.26	0.028	0.008	16.53
8.2.25	0.027	0.009	16.36
8.2.24	0.031	0.009	16.51
8.2.23	0.031	0.010	16.19
8.2.22	0.033	0.006	16.51
8.2.21	0.029	0.009	16.31
8.2.20	0.026	0.010	16.34
8.2.19	0.027	0.010	16.46
8.2.18	0.028	0.007	16.37
8.2.17	0.028	0.010	17.65
8.2.16	0.033	0.008	17.73
8.2.15	0.038	0.006	17.48
8.2.14	0.033	0.009	17.39
8.2.13	0.032	0.010	17.38
8.2.12	0.033	0.008	17.75
8.2.11	0.034	0.010	17.49
8.2.10	0.030	0.012	17.52
8.2.9	0.030	0.011	17.68
8.2.8	0.030	0.003	17.64
8.2.7	0.031	0.007	17.45
8.2.6	0.037	0.007	17.27
8.2.5	0.031	0.009	17.43
8.2.4	0.031	0.008	17.54
8.2.3	0.040	0.008	17.56
8.2.2	0.033	0.013	17.28
8.2.1	0.031	0.010	17.63
8.2.0	0.031	0.007	17.61

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