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run code in 300+ PHP versions simultaneously
<?php // Most likely front-end scenario. function is_admin() { return true; } function wp_is_json_request() { return false; } function get_locale() { return 'en_US'; } function get_user_locale() { return 'en_US'; } function apply_filters( $a, $b ) { return $b; } function sanitize_text_field( $a ) { return $a; } function determine_locale() { /** * Filters the locale for the current request prior to the default determination process. * * Using this filter allows to override the default logic, effectively short-circuiting the function. * * @since 5.0.0 * * @param string|null $locale The locale to return and short-circuit. Default null. */ $determined_locale = apply_filters( 'pre_determine_locale', null ); if ( ! empty( $determined_locale ) && is_string( $determined_locale ) ) { return $determined_locale; } $determined_locale = get_locale(); if ( is_admin() ) { $determined_locale = get_user_locale(); } if ( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() ) { $determined_locale = get_user_locale(); } $wp_lang = ''; if ( ! empty( $_GET['wp_lang'] ) ) { $wp_lang = sanitize_text_field( $_GET['wp_lang'] ); } elseif ( ! empty( $_COOKIE['wp_lang'] ) ) { $wp_lang = sanitize_text_field( $_COOKIE['wp_lang'] ); } if ( ! empty( $wp_lang ) && ! empty( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] ) { $determined_locale = $wp_lang; } /** * Filters the locale for the current request. * * @since 5.0.0 * * @param string $locale The locale. */ return apply_filters( 'determine_locale', $determined_locale ); } determine_locale(); function determine_locale_new() { /** * Filters the locale for the current request prior to the default determination process. * * Using this filter allows to override the default logic, effectively short-circuiting the function. * * @since 5.0.0 * * @param string|null $locale The locale to return and short-circuit. Default null. */ $determined_locale = apply_filters( 'pre_determine_locale', null ); if ( $determined_locale && is_string( $determined_locale ) ) { return $determined_locale; } if ( is_admin() || ( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() ) ) { $determined_locale = get_user_locale(); } else { $determined_locale = get_locale(); } if ( isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] ) { if ( ! empty( $_GET['wp_lang'] ) ) { $determined_locale = sanitize_text_field( $_GET['wp_lang'] ) ?: $determined_locale; } elseif ( ! empty( $_COOKIE['wp_lang'] ) ) { $determined_locale = sanitize_text_field( $_COOKIE['wp_lang'] ) ?: $determined_locale; } } /** * Filters the locale for the current request. * * @since 5.0.0 * * @param string $locale The locale. */ return apply_filters( 'determine_locale', $determined_locale ); } $its = 1e5; $t = hrtime(true); for ( $i = 0; $i++ < $its; ) determine_locale(); echo 'old: ', $old = ( hrtime(true)-$t ) / 1e9, "s\n"; $t = hrtime(true); for ( $i = 0; $i++ < $its; ) determine_locale_new(); echo 'new: ', $new = ( hrtime(true)-$t ) / 1e9, "s\n\n"; printf( 'New is %sx faster', number_format( $old / $new, 2 ) );
Output for 8.3.7
old: 0.02254561s new: 0.01223473s New is 1.84x faster
Output for 8.3.6
old: 0.03176087s new: 0.012846372s New is 2.47x faster
Output for 8.3.5
old: 0.02789412s new: 0.015480596s New is 1.80x faster
Output for 8.3.4
old: 0.023272777s new: 0.01200986s New is 1.94x faster
Output for 8.3.3
old: 0.024852221s new: 0.012457742s New is 1.99x faster
Output for 8.3.2
old: 0.018901885s new: 0.006606638s New is 2.86x faster
Output for 8.3.1
old: 0.012396344s new: 0.00663825s New is 1.87x faster
Output for 8.3.0
old: 0.01265494s new: 0.006766581s New is 1.87x faster
Output for 8.2.19
old: 0.034087048s new: 0.01685545s New is 2.02x faster
Output for 8.2.18
old: 0.022414465s new: 0.011578227s New is 1.94x faster
Output for 8.2.17
old: 0.028489292s new: 0.013008553s New is 2.19x faster
Output for 8.2.16
old: 0.024477428s new: 0.012334883s New is 1.98x faster
Output for 8.2.15
old: 0.024888663s new: 0.00648956s New is 3.84x faster
Output for 8.2.14
old: 0.012248376s new: 0.006888909s New is 1.78x faster
Output for 8.2.13
old: 0.012244861s new: 0.006615227s New is 1.85x faster
Output for 8.2.12
old: 0.013068641s new: 0.007202881s New is 1.81x faster
Output for 8.2.11
old: 0.023726394s new: 0.01067943s New is 2.22x faster
Output for 8.2.10
old: 0.018027618s new: 0.008188286s New is 2.20x faster
Output for 8.2.9
old: 0.024642719s new: 0.01050316s New is 2.35x faster
Output for 8.2.8
old: 0.022212858s new: 0.008748365s New is 2.54x faster
Output for 8.2.7
old: 0.017907756s new: 0.008220036s New is 2.18x faster
Output for 8.2.6
old: 0.018606252s new: 0.008595923s New is 2.16x faster
Output for 8.2.5
old: 0.017877209s new: 0.008102032s New is 2.21x faster
Output for 8.2.4
old: 0.017686489s new: 0.008531512s New is 2.07x faster
Output for 8.2.3
old: 0.019127836s new: 0.008348988s New is 2.29x faster
Output for 8.2.2
old: 0.01737403s new: 0.008130316s New is 2.14x faster
Output for 8.2.1
old: 0.01833427s new: 0.008601564s New is 2.13x faster
Output for 8.2.0
old: 0.018430601s new: 0.009950076s New is 1.85x faster
Output for 8.1.28
old: 0.027317657s new: 0.014453126s New is 1.89x faster
Output for 8.1.27
old: 0.012575918s new: 0.006524605s New is 1.93x faster
Output for 8.1.26
old: 0.012743513s new: 0.006650748s New is 1.92x faster
Output for 8.1.25
old: 0.012134356s new: 0.006684285s New is 1.82x faster
Output for 8.1.24
old: 0.024044689s new: 0.010895979s New is 2.21x faster
Output for 8.1.23
old: 0.015230517s new: 0.007137099s New is 2.13x faster
Output for 8.1.22
old: 0.017028869s new: 0.007679898s New is 2.22x faster
Output for 8.1.21
old: 0.016975154s new: 0.007648351s New is 2.22x faster
Output for 8.1.20
old: 0.017107431s new: 0.007695817s New is 2.22x faster
Output for 8.1.19
old: 0.020746737s new: 0.01106662s New is 1.87x faster
Output for 8.1.18
old: 0.018231616s new: 0.007993127s New is 2.28x faster
Output for 8.1.17
old: 0.017603011s new: 0.008105689s New is 2.17x faster
Output for 8.1.16
old: 0.016284776s new: 0.007911433s New is 2.06x faster
Output for 8.1.15
old: 0.016084319s new: 0.007734108s New is 2.08x faster
Output for 8.1.14
old: 0.016654864s new: 0.007882158s New is 2.11x faster
Output for 8.1.13
old: 0.016214343s new: 0.008314512s New is 1.95x faster
Output for 8.1.12
old: 0.017362387s new: 0.007998818s New is 2.17x faster
Output for 8.1.11
old: 0.016596744s new: 0.007889431s New is 2.10x faster
Output for 8.1.10
old: 0.016950972s new: 0.007551855s New is 2.24x faster
Output for 8.1.9
old: 0.016329541s new: 0.008413499s New is 1.94x faster
Output for 8.1.8
old: 0.016423288s new: 0.007874774s New is 2.09x faster
Output for 8.1.7
old: 0.018081353s new: 0.008181591s New is 2.21x faster
Output for 8.1.6
old: 0.017054747s new: 0.007588586s New is 2.25x faster
Output for 8.1.5
old: 0.016109756s new: 0.00778256s New is 2.07x faster
Output for 8.1.4
old: 0.016749903s new: 0.007855226s New is 2.13x faster
Output for 8.1.3
old: 0.016803344s new: 0.007642326s New is 2.20x faster
Output for 8.1.2
old: 0.017488265s new: 0.008182384s New is 2.14x faster
Output for 8.1.1
old: 0.016915745s new: 0.008209835s New is 2.06x faster
Output for 8.1.0
old: 0.017197366s new: 0.008103555s New is 2.12x faster
Output for 8.0.30
old: 0.01599284s new: 0.008581909s New is 1.86x faster
Output for 8.0.29
old: 0.017582144s new: 0.009246047s New is 1.90x faster
Output for 8.0.28
old: 0.018018825s new: 0.009698882s New is 1.86x faster
Output for 8.0.27
old: 0.018426233s new: 0.009772491s New is 1.89x faster
Output for 8.0.26
old: 0.018326755s new: 0.009662724s New is 1.90x faster
Output for 8.0.25
old: 0.018529808s new: 0.009310681s New is 1.99x faster
Output for 8.0.24
old: 0.018842066s new: 0.009120992s New is 2.07x faster
Output for 8.0.23
old: 0.017721585s new: 0.00937412s New is 1.89x faster
Output for 8.0.22
old: 0.018394624s new: 0.009884862s New is 1.86x faster
Output for 8.0.21
old: 0.017711015s new: 0.009791536s New is 1.81x faster
Output for 8.0.20
old: 0.018860311s new: 0.010130425s New is 1.86x faster
Output for 8.0.19
old: 0.019308816s new: 0.010200157s New is 1.89x faster
Output for 8.0.18
old: 0.018707082s new: 0.009675108s New is 1.93x faster
Output for 8.0.17
old: 0.01831837s new: 0.009562536s New is 1.92x faster
Output for 8.0.16
old: 0.017540874s new: 0.009584887s New is 1.83x faster
Output for 8.0.15
old: 0.017266818s new: 0.009327352s New is 1.85x faster
Output for 8.0.14
old: 0.017105264s new: 0.008646499s New is 1.98x faster
Output for 8.0.13
old: 0.017558296s new: 0.008907151s New is 1.97x faster
Output for 8.0.12
old: 0.016950051s new: 0.008621792s New is 1.97x faster
Output for 8.0.11
old: 0.017243884s new: 0.009137675s New is 1.89x faster
Output for 8.0.10
old: 0.019101886s new: 0.00893331s New is 2.14x faster
Output for 8.0.9
old: 0.018189586s new: 0.00904521s New is 2.01x faster
Output for 8.0.8
old: 0.01767703s new: 0.00949648s New is 1.86x faster
Output for 8.0.7
old: 0.016641058s new: 0.00916185s New is 1.82x faster
Output for 8.0.6
old: 0.016653121s new: 0.00913538s New is 1.82x faster
Output for 8.0.5
old: 0.016319922s new: 0.009354052s New is 1.74x faster
Output for 8.0.3
old: 0.016552751s new: 0.009438241s New is 1.75x faster
Output for 8.0.2
old: 0.01839327s new: 0.009796887s New is 1.88x faster
Output for 8.0.1
old: 0.017146941s new: 0.009364182s New is 1.83x faster

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