polylang / src / install / usable.php

usable.php in Polylang 3.8.8, at src/install/usable.php

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1	<?php
2	/**
3	* @package Polylang
4	*
5	* /!\ THE CODE IN THIS FILE MUST BE COMPATIBLE WITH PHP 5.6.
6	*
7	* /!\ THE CONSTANTS `POLYLANG`, `PLL_MIN_PHP_VERSION`, AND `PLL_MIN_WP_VERSION` MUST BE DEFINED.
8	*/
9
10	/**
11	* Class tat can tell if Polylang can be activated.
12	*
13	* @since 3.8
14	*/
15	class PLL_Usable {
16	/**
17	* Checks min PHP and WP version, displays a notice if a requirement is not met.
18	*
19	* @since 2.6.7
20	* @since 3.8 Moved from the class `PLL_Install`.
21	* Made it `static`.
22	*
23	* @return bool
24	*/
25	public static function can_activate() {
26	global $wp_version;
27
28	if ( version_compare( pll_get_constant( 'PHP_VERSION', '' ), static::get_min_php_version(), '<' ) ) {
29	add_action( 'admin_notices', array( static::class, 'php_version_notice' ) );
30	return false;
31	}
32
33	if ( version_compare( $wp_version, static::get_min_wp_version(), '<' ) ) {
34	add_action( 'admin_notices', array( static::class, 'wp_version_notice' ) );
35	return false;
36	}
37
38	return true;
39	}
40
41	/**
42	* Displays a notice if PHP min version is not met.
43	*
44	* @since 2.6.7
45	* @since 3.8 Moved from the class `PLL_Install`.
46	* Made it `static`.
47	*
48	* @return void
49	*/
50	public static function php_version_notice() {
51	load_plugin_textdomain( 'polylang' ); // Plugin i18n.
52
53	printf(
54	'<div class="error"><p>%s</p></div>',
55	sprintf(
56	/* translators: 1: Plugin name 2: Current PHP version 3: Required PHP version */
57	esc_html__( '%1$s has deactivated itself because you are using an old version of PHP. You are using using PHP %2$s. %1$s requires PHP %3$s.', 'polylang' ),
58	esc_html( static::get_plugin_name() ),
59	esc_html( pll_get_constant( 'PHP_VERSION', '' ) ),
60	esc_html( static::get_min_php_version() )
61	)
62	);
63	}
64
65	/**
66	* Displays a notice if WP min version is not met.
67	*
68	* @since 2.6.7
69	* @since 3.8 Moved from the class `PLL_Install`.
70	* Made it `static`.
71	*
72	* @return void
73	*/
74	public static function wp_version_notice() {
75	global $wp_version;
76
77	load_plugin_textdomain( 'polylang' ); // Plugin i18n.
78
79	printf(
80	'<div class="error"><p>%s</p></div>',
81	sprintf(
82	/* translators: 1: Plugin name 2: Current WordPress version 3: Required WordPress version */
83	esc_html__( '%1$s has deactivated itself because you are using an old version of WordPress. You are using using WordPress %2$s. %1$s requires at least WordPress %3$s.', 'polylang' ),
84	esc_html( static::get_plugin_name() ),
85	esc_html( $wp_version ),
86	esc_html( static::get_min_wp_version() )
87	)
88	);
89	}
90
91	/**
92	* Returns the minimal php version required to run the plugin.
93	*
94	* @since 3.8
95	*
96	* @return string
97	*/
98	public static function get_min_php_version() {
99	return pll_get_constant( 'PLL_MIN_PHP_VERSION', '' );
100	}
101
102	/**
103	* Returns the minimal WP version required to run the plugin.
104	*
105	* @since 3.8
106	*
107	* @return string
108	*/
109	public static function get_min_wp_version() {
110	return pll_get_constant( 'PLL_MIN_WP_VERSION', '' );
111	}
112
113	/**
114	* Returns the plugin's name.
115	*
116	* @since 3.8
117	*
118	* @return string
119	*/
120	public static function get_plugin_name() {
121	return pll_get_constant( 'POLYLANG', '' );
122	}
123	}
124