Online PHP editor | output for QUtp4

@ 2016-09-15T15:15:22Z

<?php

function validateStringByPrefix1(string $string, $prefix)
{
    $valid = false;
    if (is_string($prefix)) {
        if (! empty($prefix) && strpos($string, $prefix) === 0) {
            $valid = true;
        }
    } elseif (is_array($prefix)) {
        foreach ($prefix as $partPrefix) {
            if (! empty($partPrefix) && strpos($string, $partPrefix) === 0) {
                $valid = true;
                break;
            }
        }
    }
    return $valid;
}

function validateStringByPrefix2(string $string, $prefix)
{
    $valid = false;
    if (is_string($prefix)) {
        if (strpos($string, $prefix) === 0) {
            $valid = true;
        }
    } elseif (is_array($prefix)) {
        foreach ($prefix as $partPrefix) {
            if (! empty($partPrefix) && strpos($string, $partPrefix) === 0) {
                $valid = true;
                break;
            }
        }
    }
    return $valid;
}





$t = microtime(true);
var_dump(validateStringByPrefix1("foo", "bar"));
printf("1 %.6fs\n", microtime(true) - $t);

$t = microtime(true);
var_dump(validateStringByPrefix2("foo", "bar"));
printf("2 %.6fs\n", microtime(true) - $t);

Output for 7.1.7: bool(false) 1 0.000033s bool(false) 2 0.000003s
Output for 7.1.6: bool(false) 1 0.000019s bool(false) 2 0.000002s
Output for 7.1.5: bool(false) 1 0.000039s bool(false) 2 0.000004s
Output for 7.1.0: bool(false) 1 0.000021s bool(false) 2 0.000002s
Output for 7.0.20: bool(false) 1 0.000022s bool(false) 2 0.000002s
Output for 7.0.11: bool(false) 1 0.000086s bool(false) 2 0.000018s
Output for 7.0.10: bool(false) 1 0.000084s bool(false) 2 0.000014s
Output for 7.0.9: bool(false) 1 0.000038s bool(false) 2 0.000007s
Output for 7.0.8: bool(false) 1 0.000026s bool(false) 2 0.000003s
Output for 7.0.7: bool(false) 1 0.000041s bool(false) 2 0.000003s
Output for 7.0.6: bool(false) 1 0.000044s bool(false) 2 0.000003s
Output for 7.0.5: bool(false) 1 0.000036s bool(false) 2 0.000002s
Output for 7.0.4: bool(false) 1 0.000099s bool(false) 2 0.000013s
Output for 7.0.3: bool(false) 1 0.000104s bool(false) 2 0.000012s
Output for 7.0.2: bool(false) 1 0.009331s bool(false) 2 0.000025s
Output for 7.0.1: bool(false) 1 0.000109s bool(false) 2 0.000022s
Output for 7.0.0: bool(false) 1 0.000096s bool(false) 2 0.000012s
Output for 5.6.0 - 5.6.25: Catchable fatal error: Argument 1 passed to validateStringByPrefix1() must be an instance of string, string given, called in /in/QUtp4 on line 44 and defined in /in/QUtp4 on line 3
Process exited with code 255.

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