├── .gitignore ├── composer.json ├── spec └── WPUpdatePhpSpec.php ├── README.md ├── src └── WPUpdatePhp.php └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | .DS_Store 2 | composer.lock 3 | 4 | /.idea/ 5 | /vendor/ -------------------------------------------------------------------------------- /composer.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "wpupdatephp/wp-update-php", 3 | "description": "Library to be bundled with WordPress plugins to enforce users to upgrade to PHP 5.4 hosting", 4 | "support": { 5 | "issues": "https://github.com/wpupdatephp/wp-update-php/issues", 6 | "source": "https://github.com/wpupdatephp/wp-update-php" 7 | }, 8 | "require-dev": { 9 | "phpspec/phpspec": "~2.0" 10 | }, 11 | "autoload": { 12 | "classmap": ["src"] 13 | }, 14 | "license": "GPL-2.0+" 15 | } 16 | -------------------------------------------------------------------------------- /spec/WPUpdatePhpSpec.php: -------------------------------------------------------------------------------- 1 | beConstructedWith( '5.4.0', '5.3.0' ); 21 | } 22 | 23 | function it_can_run_on_minimum_version() { 24 | $this->does_it_meet_required_php_version( '5.4.0' )->shouldReturn( true ); 25 | } 26 | 27 | function it_passes_the_recommended_version() { 28 | $this->does_it_meet_recommended_php_version( '5.3.0' )->shouldReturn( true ); 29 | } 30 | 31 | function it_will_not_run_on_old_version() { 32 | $this->does_it_meet_required_php_version( '5.2.4' )->shouldReturn( false ); 33 | } 34 | 35 | function it_fails_the_recommended_version() { 36 | $this->does_it_meet_recommended_php_version( '5.2.9' )->shouldReturn( false ); 37 | } 38 | 39 | function it_adds_plugin_name_to_admin_notice() { 40 | $this->set_plugin_name( 'Test Plugin' ); 41 | $this->get_admin_notice()->shouldMatch('/Test Plugin/i'); 42 | $this->get_admin_notice( 'recommended' )->shouldMatch('/Test Plugin/i'); 43 | } 44 | } 45 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # WPupdatePHP library 2 | Library to be bundled with WordPress plugins to enforce users to upgrade their PHP versions _or_ switch to a decent host. 3 | 4 | ## Installation 5 | We recommend installing the library using [Composer](https://getcomposer.org/), as follows. 6 | 7 | ``` 8 | composer require wpupdatephp/wp-update-php 9 | ``` 10 | 11 | Another option is to download the [class file](https://github.com/WPupdatePHP/wp-update-php/blob/master/src/WPUpdatePhp.php) manually. 12 | 13 | ## Usage 14 | Usage of this library depends on how you start your plugin. The core `does_it_meet_required_php_version` method does all the checking for you and adds an admin notice in case the version requirement is not met. 15 | 16 | For example, when you start your plugin by instantiating a new object, you should wrap a conditional check around it. 17 | 18 | _Example:_ 19 | 20 | ```php 21 | $updatePhp = new WPUpdatePhp( '5.6.0' ); 22 | 23 | if ( $updatePhp->does_it_meet_required_php_version() ) { 24 | // Instantiate new object here 25 | } 26 | 27 | // The version check has failed, an admin notice has been thrown 28 | ``` 29 | 30 | ## Including the library file 31 | Adding the library via Composer has preference. The Composer autoloader will automatically take care of preventing including two classes with the same name. 32 | 33 | In case you want to include the file manually, please wrap the include or require call in a [`class_exists`](http://php.net/class_exists) conditional, like so: 34 | 35 | ```php 36 | if ( ! class_exists( 'WPUpdatePhp' ) ) { 37 | // do the file include or require here 38 | } 39 | ``` 40 | 41 | ## Setting the name of the plugin 42 | The notice that will be thrown can also contain the name of the plugin. Use the `set_plugin_name( $name )` method on the `WPUpdatePhp` object to provide the name. This call needs to be made before the `does_it_meet_required_php_version()` method is called to check versions. 43 | 44 | ## License 45 | (GPLv2 license or later) 46 | 47 | WP Update PHP Library 48 | Copyright (C) 2015 Coen Jacobs 49 | 50 | This program is free software: you can redistribute it and/or modify 51 | it under the terms of the GNU General Public License as published by 52 | the Free Software Foundation, either version 2 of the License, or 53 | (at your option) any later version. 54 | 55 | This program is distributed in the hope that it will be useful, 56 | but WITHOUT ANY WARRANTY; without even the implied warranty of 57 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 58 | GNU General Public License for more details. 59 | 60 | You should have received a copy of the GNU General Public License 61 | along with this program. If not, see . 62 | -------------------------------------------------------------------------------- /src/WPUpdatePhp.php: -------------------------------------------------------------------------------- 1 | minimum_version = $minimum_version; 30 | $this->recommended_version = $recommended_version; 31 | } 32 | 33 | /** 34 | * Set the plugin name for the admin notice. 35 | * 36 | * @param string $name Name of the plugin to be used in admin notices. 37 | */ 38 | public function set_plugin_name( $name ) { 39 | $this->plugin_name = $name; 40 | } 41 | 42 | /** 43 | * Check given PHP version against minimum required version. 44 | * 45 | * @param string $version Optional. PHP version to check against. 46 | * Default is the current PHP version as a string in 47 | * "major.minor.release[extra]" notation. 48 | * @return bool True if supplied PHP version meets minimum required version. 49 | */ 50 | public function does_it_meet_required_php_version( $version = PHP_VERSION ) { 51 | if ( $this->version_passes_requirement( $this->minimum_version, $version ) ) { 52 | return true; 53 | } 54 | 55 | $this->load_version_notice( array( $this, 'minimum_admin_notice' ) ); 56 | return false; 57 | } 58 | 59 | /** 60 | * Check given PHP version against recommended version. 61 | * 62 | * @param string $version Optional. PHP version to check against. 63 | * Default is the current PHP version as a string in 64 | * "major.minor.release[extra]" notation. 65 | * @return bool True if supplied PHP version meets recommended version. 66 | */ 67 | public function does_it_meet_recommended_php_version( $version = PHP_VERSION ) { 68 | if ( $this->version_passes_requirement( $this->recommended_version, $version ) ) { 69 | return true; 70 | } 71 | 72 | $this->load_version_notice( array( $this, 'recommended_admin_notice' ) ); 73 | return false; 74 | } 75 | 76 | /** 77 | * Check that one PHP version is less than or equal to another. 78 | * 79 | * @param string $requirement The baseline version of PHP. 80 | * @param string $version The given version of PHP. 81 | * @return bool True if the requirement is less than or equal to given version. 82 | */ 83 | private function version_passes_requirement( $requirement, $version ) { 84 | return version_compare( $requirement, $version, '<=' ); 85 | } 86 | 87 | /** 88 | * Conditionally hook in an admin notice. 89 | * 90 | * @param callable $callback Callable that displays admin notice. 91 | */ 92 | private function load_version_notice( $callback ) { 93 | if ( is_admin() && ! defined( 'DOING_AJAX' ) ) { 94 | add_action( 'admin_notices', $callback ); 95 | add_action( 'network_admin_notices', $callback ); 96 | } 97 | } 98 | 99 | /** 100 | * Return the string to be shown in the admin notice. 101 | * 102 | * This is based on the level (`recommended` or default `minimum`) of the 103 | * notice. This will also add the plugin name to the notice string, if set. 104 | * 105 | * @param string $level Optional. Admin notice level, `recommended` or `minimum`. 106 | * Default is `minimum`. 107 | * @return string 108 | */ 109 | public function get_admin_notice( $level = 'minimum' ) { 110 | if ( 'recommended' === $level ) { 111 | if ( ! empty( $this->plugin_name ) ) { 112 | return '

' . $this->plugin_name . ' recommends a PHP version higher than ' . $this->recommended_version . '. Read more information about how you can update.

'; 113 | } else { 114 | return '

This plugin recommends a PHP version higher than ' . $this->recommended_version . '. Read more information about how you can update.

'; 115 | } 116 | } 117 | 118 | if ( ! empty( $this->plugin_name ) ) { 119 | return '

Unfortunately, ' . $this->plugin_name . ' cannot run on PHP versions older than ' . $this->minimum_version . '. Read more information about how you can update.

'; 120 | } else { 121 | return '

Unfortunately, this plugin cannot run on PHP versions older than ' . $this->minimum_version . '. Read more information about how you can update.

'; 122 | } 123 | } 124 | 125 | /** 126 | * Method hooked into admin_notices when minimum required PHP version is not 127 | * available to show this in a notice. 128 | * 129 | * @hook admin_notices 130 | */ 131 | public function minimum_admin_notice() { 132 | echo '
'; 133 | echo $this->get_admin_notice( 'minimum' ); 134 | echo '
'; 135 | } 136 | 137 | /** 138 | * Method hooked into admin_notices when recommended PHP version is not 139 | * available to show this in a notice. 140 | * 141 | * @hook admin_notices 142 | */ 143 | public function recommended_admin_notice() { 144 | echo '
'; 145 | echo $this->get_admin_notice( 'recommended' ); 146 | echo '
'; 147 | } 148 | } 149 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. By contrast, the GNU General Public 13 | License is intended to guarantee your freedom to share and change free 14 | software--to make sure the software is free for all its users. This 15 | General Public License applies to most of the Free Software 16 | Foundation's software and to any other program whose authors commit to 17 | using it. (Some other Free Software Foundation software is covered by 18 | the GNU Lesser General Public License instead.) You can apply it to 19 | your programs, too. 20 | 21 | When we speak of free software, we are referring to freedom, not 22 | price. Our General Public Licenses are designed to make sure that you 23 | have the freedom to distribute copies of free software (and charge for 24 | this service if you wish), that you receive source code or can get it 25 | if you want it, that you can change the software or use pieces of it 26 | in new free programs; and that you know you can do these things. 27 | 28 | To protect your rights, we need to make restrictions that forbid 29 | anyone to deny you these rights or to ask you to surrender the rights. 30 | These restrictions translate to certain responsibilities for you if you 31 | distribute copies of the software, or if you modify it. 32 | 33 | For example, if you distribute copies of such a program, whether 34 | gratis or for a fee, you must give the recipients all the rights that 35 | you have. You must make sure that they, too, receive or can get the 36 | source code. And you must show them these terms so they know their 37 | rights. 38 | 39 | We protect your rights with two steps: (1) copyright the software, and 40 | (2) offer you this license which gives you legal permission to copy, 41 | distribute and/or modify the software. 42 | 43 | Also, for each author's protection and ours, we want to make certain 44 | that everyone understands that there is no warranty for this free 45 | software. If the software is modified by someone else and passed on, we 46 | want its recipients to know that what they have is not the original, so 47 | that any problems introduced by others will not reflect on the original 48 | authors' reputations. 49 | 50 | Finally, any free program is threatened constantly by software 51 | patents. We wish to avoid the danger that redistributors of a free 52 | program will individually obtain patent licenses, in effect making the 53 | program proprietary. 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Many people have made 220 | generous contributions to the wide range of software distributed 221 | through that system in reliance on consistent application of that 222 | system; it is up to the author/donor to decide if he or she is willing 223 | to distribute software through any other system and a licensee cannot 224 | impose that choice. 225 | 226 | This section is intended to make thoroughly clear what is believed to 227 | be a consequence of the rest of this License. 228 | 229 | 8. If the distribution and/or use of the Program is restricted in 230 | certain countries either by patents or by copyrighted interfaces, the 231 | original copyright holder who places the Program under this License 232 | may add an explicit geographical distribution limitation excluding 233 | those countries, so that distribution is permitted only in or among 234 | countries not thus excluded. In such case, this License incorporates 235 | the limitation as if written in the body of this License. 236 | 237 | 9. The Free Software Foundation may publish revised and/or new versions 238 | of the General Public License from time to time. Such new versions will 239 | be similar in spirit to the present version, but may differ in detail to 240 | address new problems or concerns. 241 | 242 | Each version is given a distinguishing version number. If the Program 243 | specifies a version number of this License which applies to it and "any 244 | later version", you have the option of following the terms and conditions 245 | either of that version or of any later version published by the Free 246 | Software Foundation. If the Program does not specify a version number of 247 | this License, you may choose any version ever published by the Free Software 248 | Foundation. 249 | 250 | 10. If you wish to incorporate parts of the Program into other free 251 | programs whose distribution conditions are different, write to the author 252 | to ask for permission. For software which is copyrighted by the Free 253 | Software Foundation, write to the Free Software Foundation; we sometimes 254 | make exceptions for this. Our decision will be guided by the two goals 255 | of preserving the free status of all derivatives of our free software and 256 | of promoting the sharing and reuse of software generally. 257 | 258 | NO WARRANTY 259 | 260 | 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 261 | FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 262 | OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 263 | PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 264 | OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 265 | MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 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It is safest 289 | to attach them to the start of each source file to most effectively 290 | convey the exclusion of warranty; and each file should have at least 291 | the "copyright" line and a pointer to where the full notice is found. 292 | 293 | 294 | Copyright (C) 295 | 296 | This program is free software; you can redistribute it and/or modify 297 | it under the terms of the GNU General Public License as published by 298 | the Free Software Foundation; either version 2 of the License, or 299 | (at your option) any later version. 300 | 301 | This program is distributed in the hope that it will be useful, 302 | but WITHOUT ANY WARRANTY; without even the implied warranty of 303 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 | GNU General Public License for more details. 305 | 306 | You should have received a copy of the GNU General Public License along 307 | with this program; if not, write to the Free Software Foundation, Inc., 308 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309 | 310 | Also add information on how to contact you by electronic and paper mail. 311 | 312 | If the program is interactive, make it output a short notice like this 313 | when it starts in an interactive mode: 314 | 315 | Gnomovision version 69, Copyright (C) year name of author 316 | Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 | This is free software, and you are welcome to redistribute it 318 | under certain conditions; type `show c' for details. 319 | 320 | The hypothetical commands `show w' and `show c' should show the appropriate 321 | parts of the General Public License. Of course, the commands you use may 322 | be called something other than `show w' and `show c'; they could even be 323 | mouse-clicks or menu items--whatever suits your program. 324 | 325 | You should also get your employer (if you work as a programmer) or your 326 | school, if any, to sign a "copyright disclaimer" for the program, if 327 | necessary. Here is a sample; alter the names: 328 | 329 | Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 | `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 | 332 | , 1 April 1989 333 | Ty Coon, President of Vice 334 | 335 | This General Public License does not permit incorporating your program into 336 | proprietary programs. If your program is a subroutine library, you may 337 | consider it more useful to permit linking proprietary applications with the 338 | library. If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. --------------------------------------------------------------------------------