# s2member/111003/includes/classes/utils-strings.inc.php s2Member – Excellent for All Kinds of Memberships, Content Restriction Paywalls & Member Access Subscriptions, version 111003. 293 lines. - Page: https://pluginprobe.com/plugins/s2member/111003/code/includes/classes/utils-strings.inc.php - Raw: https://pluginprobe.com/plugins/s2member/111003/raw/includes/classes/utils-strings.inc.php - Modified: 2011-10-03T20:12:40+00:00 Line numbers below start at 1. Link to a line or a range by appending a fragment to the page URL, for example `https://pluginprobe.com/plugins/s2member/111003/code/includes/classes/utils-strings.inc.php#L10-L20`. ```php = 0) ? (int)$times : 1; return str_replace ('"', str_repeat ("\\", $times) . '"', (string)$string); } /** * Escapes single quotes. * * @package s2Member\Utilities * @since 3.5 * * @param str $string Input string. * @param int $times Mumber of escapes. Defaults to 1. * @return str Output string after single quotes are escaped. */ public static function esc_sq ($string = FALSE, $times = FALSE) { $times = (is_numeric ($times) && $times >= 0) ? (int)$times : 1; return str_replace ("'", str_repeat ("\\", $times) . "'", (string)$string); } /** * Escapes JavaScript and single quotes. * * @package s2Member\Utilities * @since 110901 * * @param str $string Input string. * @param int $times Mumber of escapes. Defaults to 1. * @return str Output string after JavaScript and single quotes are escaped. */ public static function esc_js_sq ($string = FALSE, $times = FALSE) { $times = (is_numeric ($times) && $times >= 0) ? (int)$times : 1; return str_replace ("'", str_repeat ("\\", $times) . "'", str_replace (array ("\r", "\n"), array ("", '\\n'), str_replace ("\'", "'", (string)$string))); } /** * Escapes dollars signs ( for regex patterns ). * * @package s2Member\Utilities * @since 3.5 * * @param str $string Input string. * @param int $times Mumber of escapes. Defaults to 1. * @return str Output string after dollar signs are escaped. */ public static function esc_ds ($string = FALSE, $times = FALSE) { $times = (is_numeric ($times) && $times >= 0) ? (int)$times : 1; return str_replace ('$', str_repeat ("\\", $times) . '$', (string)$string); } /** * Sanitizes a string; by removing non-standard characters. * * This allows all characters that appears on a standard U.S. keyboard. * * @package s2Member\Utilities * @since 3.5 * * @param str $string Input string. * @return str Output string after non-keyboard chars are removed. */ public static function keyboard_chars_only ($string = FALSE) { return preg_replace ("/[^0-9A-Z\r\n\t\s`\=\[\]\\\;',\.\/~\!@#\$%\^&\*\(\)_\+\|\}\{\:\"\?\>\<\-]/i", "", remove_accents ((string)$string)); } /** * Trims deeply. * * @package s2Member\Utilities * @since 3.5 * * @param str|array $value Either a string, an array, or a multi-dimensional array, filled with integer and/or string values. * @return str|array Either the input string, or the input array; after all data is trimmed up. */ public static function trim_deep ($value = FALSE) { return is_array ($value) ? array_map ("c_ws_plugin__s2member_utils_strings::trim_deep", $value) : trim ((string)$value); } /** * Trims " entities deeply. * * This is useful on Shortcode attributes mangled by a Visual Editor. * * @package s2Member\Utilities * @since 3.5 * * @param str|array $value Either a string, an array, or a multi-dimensional array, filled with integer and/or string values. * @return str|array Either the input string, or the input array; after all data is trimmed up. */ public static function trim_quot_deep ($value = FALSE) { return is_array ($value) ? array_map ("c_ws_plugin__s2member_utils_strings::trim_quot_deep", $value) : preg_replace ("(^(")+|(")+$)", "", (string)$value); } /** * Trims double quotes deeply. * * This is useful on CSV data that is encapsulated by double quotes. * * @package s2Member\Utilities * @since 3.5 * * @param str|array $value Either a string, an array, or a multi-dimensional array, filled with integer and/or string values. * @return str|array Either the input string, or the input array; after all data is trimmed up. */ public static function trim_dq_deep ($value = FALSE) { return is_array ($value) ? array_map ("c_ws_plugin__s2member_utils_strings::trim_dq_deep", $value) : trim ((string)$value, "\" \t\n\r\0\x0B"); } /** * Wraps a string with the characters provided. * * This is useful when preparing an input array for ``c_ws_plugin__s2member_utils_arrays::in_regex_array()``. * * @package s2Member\Utilities * @since 3.5 * * @param str|array $value Either a string, an array, or a multi-dimensional array, filled with integer and/or string values. * @param str $beg Optional. A string value to wrap at the beginning of each value. * @param str $end Optional. A string value to wrap at the ending of each value. * @return str|array Either the input string, or the input array; after all data is wrapped up. */ public static function wrap_deep ($value = FALSE, $beg = FALSE, $end = FALSE) { if (is_array ($value)) /* Handles all types of arrays. Note, we do NOT use ``array_map()`` here, because multiple args to ``array_map()`` causes a loss of string keys. For further details, see: . */ { foreach ($value as &$r) /* Reference. */ $r = c_ws_plugin__s2member_utils_strings::wrap_deep ($r, $beg, $end); return $value; /* Return modified array. */ } return (is_string ($value) && strlen ($value)) ? (string)$beg . $value . (string)$end : (string)$value; } /** * Escapes meta characters with ``preg_quote()`` deeply. * * @package s2Member\Utilities * @since 110926 * * @param str|array $value Either a string, an array, or a multi-dimensional array, filled with integer and/or string values. * @param str $delimiter Optional. If a delimiting character is specified, it will also be escaped via ``preg_quote()``. * @return str|array Either the input string, or the input array; after all data is escaped with ``preg_quote()``. */ public static function preg_quote_deep ($value = FALSE, $delimiter = FALSE) { if (is_array ($value)) /* Handles all types of arrays. Note, we do NOT use ``array_map()`` here, because multiple args to ``array_map()`` causes a loss of string keys. For further details, see: . */ { foreach ($value as &$r) /* Reference. */ $r = c_ws_plugin__s2member_utils_strings::preg_quote_deep ($r, $delimiter); return $value; /* Return modified array. */ } return preg_quote ((string)$value, (string)$delimiter); } /** * Generates a random string with letters/numbers/symbols. * * @package s2Member\Utilities * @since 3.5 * * @param int $length Length of the randomly generated string. * @param bool $special_chars Defaults to true. If false, special chars are NOT included. * @param bool $extra_special_chars Defaults to false. If true, extra special chars are included. * @return str A randomly generated string, based on parameter configuration. */ public static function random_str_gen ($length = 12, $special_chars = TRUE, $extra_special_chars = FALSE) { $chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; $chars .= ($extra_special_chars) ? "-_ []{}<>~`+=,.;:/?|" : ""; $chars .= ($special_chars) ? "!@#$%^&*()" : ""; /**/ for ($i = 0, $random_str = ""; $i < $length; $i++) $random_str .= substr ($chars, mt_rand (0, strlen ($chars) - 1), 1); /**/ return $random_str; } /** * Highlights PHP, and also Shortcodes. * * @package s2Member\Utilities * @since 3.5 * * @param str $str Input string to be highlighted. * @return str The highlighted string. */ public static function highlight_php ($string = FALSE) { $string = highlight_string ((string)$string, true); /* Start with PHP syntax highlighting first. */ /**/ return preg_replace_callback ("/(\[)(\/?)(_*s2If|s2Get|s2Member-[A-z_0-9\-]+)(.*?)(\])/i", "c_ws_plugin__s2member_utils_strings::_highlight_php", $string); } /** * Highlights Shortcodes. * * @package s2Member\Utilities * @since 3.5 * * @param array $m Array passed in from `preg_replace_callback()`. * @return str The highlighted string. */ public static function _highlight_php ($m = FALSE) { return '' . $m[0] . ''; } /** * Base64 URL-safe encoding. * * @package s2Member\Utilities * @since 110913 * * @param str $string Input string to be base64 encoded. * @param array $url_unsafe_chars Optional. An array of un-safe characters. Defaults to: ``array("+", "/")``. * @param array $url_safe_chars Optional. An array of safe character replacements. Defaults to: ``array("-", "_")``. * @param str $trim_padding_chars Optional. A string of padding chars to rtrim. Defaults to: `=~.`. * @return str The base64 URL-safe encoded string. */ public static function base64_url_safe_encode ($string = FALSE, $url_unsafe_chars = array ("+", "/"), $url_safe_chars = array ("-", "_"), $trim_padding_chars = "=~.") { eval ('$string = (string)$string; $trim_padding_chars = (string)$trim_padding_chars;'); /**/ $base64_url_safe = str_replace ((array)$url_unsafe_chars, (array)$url_safe_chars, base64_encode ($string)); $base64_url_safe = (strlen ($trim_padding_chars)) ? rtrim ($base64_url_safe, $trim_padding_chars) : $base64_url_safe; /**/ return $base64_url_safe; /* Base64 encoded, with URL-safe replacements. */ } /** * Base64 URL-safe decoding. * * Note, this function is backward compatible with routines supplied by s2Member in the past; * where padding characters were replaced with `~` or `.`, instead of being stripped completely. * * @package s2Member\Utilities * @since 110913 * * @param str $base64_url_safe Input string to be base64 decoded. * @param array $url_unsafe_chars Optional. An array of un-safe character replacements. Defaults to: ``array("+", "/")``. * @param array $url_safe_chars Optional. An array of safe characters. Defaults to: ``array("-", "_")``. * @param str $trim_padding_chars Optional. A string of padding chars to rtrim. Defaults to: `=~.`. * @return str The decoded string. */ public static function base64_url_safe_decode ($base64_url_safe = FALSE, $url_unsafe_chars = array ("+", "/"), $url_safe_chars = array ("-", "_"), $trim_padding_chars = "=~.") { eval ('$base64_url_safe = (string)$base64_url_safe; $trim_padding_chars = (string)$trim_padding_chars;'); /**/ $string = (strlen ($trim_padding_chars)) ? rtrim ($base64_url_safe, $trim_padding_chars) : $base64_url_safe; $string = (strlen ($trim_padding_chars)) ? str_pad ($string, strlen ($string) % 4, "=", STR_PAD_RIGHT) : $string; $string = base64_decode (str_replace ((array)$url_safe_chars, (array)$url_unsafe_chars, $string)); /**/ return $string; /* Base64 decoded, with URL-safe replacements. */ } } } ?> ```