// from http://aahacreative.com/2012/07/31/php-syntax-highlighting-prism/
Prism.languages.php = {
	'comment': {
		pattern: /(^|[^\\])(\/\*[\w\W]*?\*\/|\/\/.*?(\r?\n|$))/g,
		lookbehind: true
	},
	'variable': /(\$[a-z_]\w+)((-(\>|>)\$?[a-z_]\w+(?!\()))?\b/ig,
	'string': /(("|')(\\?.)*?\2)|((<<<|&lt;&lt;&lt;)([a-zA-Z_])[\w\W]+\4;)/g,
	'regex': {
		pattern: /(^|[^/])\/(?!\/)(\[.+?]|\\.|[^/\r\n])+\/[gim]{0,3}(?=\s*($|[\r\n,.;})]))/g,
		lookbehind: true
	},
	'keyword': /\b(and|or|xor|array|as|break|case|cfunction|class|const|continue|declare|default|die|do|else|elseif|enddeclare|endfor|endforeach|endif|endswitch|endwhile|extends|for|foreach|function|include|include_once|global|if|new|return|static|switch|use|require|require_once|var|while|abstract|interface|pu blic|implements|extends|private|protected|throw|exit|echo)\b/g,
	'function': /(((-(\>|&gt;)\w+))(?=\())|(\b(abs|acos|acosh|addcslashes|addslashes|array_change_key_case|array_chunk|array_combine|array_count_values|array_diff|array_diff_assoc|array_diff_key|array_diff_uassoc|array_diff_ukey|array_fill|array_filter|array_flip|array_intersect|array_intersect_assoc|array_intersect_key|array_intersect_uassoc|array_intersect_ukey|array_key_exists|array_keys|array_map|array_merge|array_merge_recursive|array_multisort|array_pad|array_pop|array_product|array_push|array_rand|array_reduce|array_reverse|array_search|array_shift|array_slice|array_splice|array_sum|array_udiff|array_udiff_assoc|array_udiff_uassoc|array_uintersect|array_uintersect_assoc|array_uintersect_uassoc|array_unique|array_unshift|array_values|array_walk|array_walk_recursive|atan|atan2|atanh|base64_decode|base64_encode|base_convert|basename|bcadd|bccomp|bcdiv|bcmod|bcmul|bindec|bindtextdomain|bzclose|bzcompress|bzdecompress|bzerrno|bzerror|bzerrstr|bzflush|bzopen|list|bzread|bzwrite|ceil|chdir|checkdate|checkdnsrr|chgrp|chmod|chop|chown|chr|chroot|chunk_split|class_exists|closedir|closelog|copy|cos|cosh|count|count_chars|date|decbin|dechex|decoct|deg2rad|delete|ebcdic2ascii|empty|end|ereg|ereg_replace|eregi|eregi_replace|error_log|error_reporting|escapeshellarg|escapeshellcmd|eval|exec|exp|explode|extension_loaded|feof|fflush|fgetc|fgetcsv|fgets|fgetss|file_exists|file_get_contents|file_put_contents|fileatime|filectime|filegroup|fileinode|filemtime|fileowner|fileperms|filesize|filetype|floatval|flock|floor|flush|fmod|fnmatch|fopen|fpassthru|fprintf|fputcsv|fputs|fread|fscanf|fseek|fsockopen|fstat|ftell|ftok|getallheaders|getcwd|getdate|getenv|gethostbyaddr|gethostbyname|gethostbynamel|getimagesize|getlastmod|getmxrr|getmygid|getmyinode|getmypid|getmyuid|getopt|getprotobyname|getprotobynumber|getrandmax|getrusage|getservbyname|getservbyport|gettext|gettimeofday|gettype|glob|gmdate|gmmktime|ini_alter|ini_get|ini_get_all|ini_restore|ini_set|interface_exists|intval|ip2long|is_a|is_array|is_bool|is_callable|is_dir|is_double|is_executable|is_file|is_finite|is_float|is_infinite|is_int|is_integer|is_link|is_long|is_nan|is_null|is_numeric|is_object|is_readable|is_real|is_resource|is_scalar|is_soap_fault|is_string|is_subclass_of|is_uploaded_file|is_writable|is_writeable|mkdir|mktime|nl2br|parse_ini_file|parse_str|parse_url|passthru|pathinfo|readlink|realpath|rewind|rewinddir|rmdir|round|str_ireplace|str_pad|str_repeat|str_replace|str_rot13|str_shuffle|str_split|str_word_count|strcasecmp|strchr|strcmp|strcoll|strcspn|strftime|strip_tags|stripcslashes|stripos|stripslashes|stristr|strlen|strnatcasecmp|strnatcmp|strncasecmp|strncmp|strpbrk|strpos|strptime|strrchr|strrev|strripos|strrpos|strspn|strstr|strtok|strtolower|strtotime|strtoupper|strtr|strval|substr|substr_compare|unset|print|isset)\b)/g,
	'boolean': /\b(true|false)\b/g,
	'number': /\b-?(0x)?\d*\.?\d+\b/g,
	'operator': /[-+]{1,2}|!|=?\&lt;|=?\&gt;|={1,2}|(\&amp;){1,2}|\|?\||\?|\*|\//g,
	'constant': /(\b[A-Z_]+\b)|(__FILE__|__DIR__|__LINE__|__METHOD__|__NAMESPACE__|__FUNCTION__|__CLASS__)\b/g,
	'punctuation': /|\?&gt;|&lt;\?php|[{}[\];(),.:]/ig
};

if (Prism.languages.markup) {
	Prism.languages.insertBefore('php', 'punctuation', {
		'markup': {
			pattern: /(\?>|\?&gt;)[\w\W]*?(?=(&lt;\?php|<\?php))/ig,
			lookbehind : true,
			inside: {
				'tag': {
					pattern: /&lt;\/?[\w:-]+\s*[\w\W]*?&gt;/gi,
					inside: Prism.languages.markup.tag.inside
				},
				rest: Prism.languages.php
			}
		}
	});
}

if (Prism.languages.markup) {
	Prism.languages.insertBefore('markup', 'prolog', {
		'php': {
			pattern: /(&lt;\?php|<\?php)[\w\W]*?(\?>|\?&gt;)/g,
			inside: {
				'php': {
					pattern: /(&lt;\?php|<\?php)[\w\W]*?(\?>|\?&gt;)/g,
					inside: Prism.languages.php
				},
				rest: Prism.languages.markup.tag
			}
		}
	});
}