forked from Adleraci/adlerka.top
79 lines
2.3 KiB
PHP
79 lines
2.3 KiB
PHP
<?php
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declare(strict_types=1);
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function inlineLocalStylesFromHref($inputString): string
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{
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$pattern = '/<link[^>]*?\srel=["\']?stylesheet["\'].*?\shref=["\']?\/(.*?)["\'][^>]*?>/i';
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return preg_replace_callback($pattern, function($match) {
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$href = $match[1];
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$cssFilePath = $_SERVER['DOCUMENT_ROOT'] . '/' . $href;
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$cssContent = file_get_contents($cssFilePath);
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$cssDir = dirname($cssFilePath);
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$cssContent = preg_replace_callback('/url\(["\']?(\/.*?|.*?)["\']?\)/i', function($urlMatch) use ($cssDir) {
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$url = $urlMatch[1];
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// Check if the URL starts with any protocol or //
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if (!preg_match('/^([a-zA-Z]+:)?\/\//', $url)) {
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$absolutePath = $cssDir . '/' . $url;
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$relativePath = ltrim(substr($absolutePath, strlen($_SERVER['DOCUMENT_ROOT'])), '/');
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return 'url("' . $relativePath . '")';
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} else {
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// If the URL starts with a protocol or //, leave it unchanged
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return 'url("' . $url . '")';
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}
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}, $cssContent);
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// Minify the CSS content
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$cssContent = minifyCss($cssContent);
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return "<style>$cssContent</style>";
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}, $inputString);
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}
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function inlineScriptFromSrc($inputString): string
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{
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$pattern = '/<script.*?src=["\']\/(.*?)["\'].*?>\s*<\/script>/i';
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return preg_replace_callback($pattern, function($match) {
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$src = $match[1];
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$jsContent = file_get_contents($_SERVER['DOCUMENT_ROOT'] . '/' . $src);
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// Minify the JavaScript content
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$jsContent = minifyJs($jsContent);
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return "<script>$jsContent</script>";
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}, $inputString);
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}
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function minifyCss($css): string
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{
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// Remove comments
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$css = preg_replace('!/\*[^*]*\*+([^/][^*]*\*+)*/!', '', $css);
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// Remove whitespace
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$css = preg_replace('/\s+/', ' ', $css);
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// Remove unnecessary semicolons
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$css = str_replace(';}', '}', $css);
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// Remove spaces around colons
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$css = str_replace(': ', ':', $css);
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// Remove spaces around commas
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$css = str_replace(', ', ',', $css);
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return trim($css);
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}
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function minifyJs($js): string
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{
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// Remove newlines and tabs
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$js = str_replace("\t", '', $js);
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// Remove spaces around operators
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$js = preg_replace('~\s*([=+\-*/])\s*~', '$1', $js);
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return trim($js);
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} |