{"id":3148,"date":"2023-10-23T16:09:53","date_gmt":"2023-10-23T08:09:53","guid":{"rendered":"https:\/\/wpeyes.com\/wordpress\/?p=3148"},"modified":"2023-10-23T16:11:39","modified_gmt":"2023-10-23T08:11:39","slug":"%e6%9c%80%e4%bd%b3%e5%ae%9e%e8%b7%b5%ef%bc%9a%e5%9c%a8-wordpress-%e4%b8%bb%e9%a2%98%e4%b8%ad%e6%b7%bb%e5%8a%a0%e6%97%b6%e6%a3%80%e6%9f%a5%e5%87%bd%e6%95%b0%e6%98%af%e5%90%a6%e5%ad%98%e5%9c%a8","status":"publish","type":"post","link":"https:\/\/wpeyes.com\/wordpress\/archives\/3148","title":{"rendered":"\u6700\u4f73\u5b9e\u8df5\uff1a\u5728 WordPress \u4e3b\u9898\u4e2d\u6dfb\u52a0\u65f6\u68c0\u67e5\u51fd\u6570\u662f\u5426\u5b58\u5728"},"content":{"rendered":"\n<p>\u6700\u8fd1\uff0c\u4e00\u4f4d\u7528\u6237\u8be2\u95ee\u6211\u4eec\u5982\u4f55\u5728\u5411\u4f9d\u8d56 PHP \u51fd\u6570\u7684 WordPress \u7f51\u7ad9\u6dfb\u52a0\u4e00\u4e9b\u65b0\u4ee3\u7801\u4e4b\u524d\u68c0\u67e5\u8be5\u51fd\u6570\u662f\u5426\u5b58\u5728\u3002<\/p>\n\n\n\n<p>WordPress \u6700\u597d\u7684\u90e8\u5206\u662f\u5b83\u7684\u7075\u6d3b\u6027\uff0c\u5305\u62ec\u80fd\u591f\u5c06\u60a8\u81ea\u5df1\u7684\u529f\u80fd\u6dfb\u52a0\u5230\u60a8\u7684\u7f51\u7ad9\u3002\u4f46\u662f\uff0c\u6709\u65f6\u60a8\u7684\u81ea\u5b9a\u4e49\u4ee3\u7801\u53ef\u80fd\u65e0\u6cd5\u5de5\u4f5c\uff0c\u56e0\u4e3a\u5b83\u5f15\u7528\u7684\u51fd\u6570\u4e0d\u518d\u5b58\u5728\u3002<\/p>\n\n\n\n<p>\u5728\u672c\u6587\u4e2d\uff0c\u6211\u4eec\u5c06\u5411\u60a8\u5c55\u793a\u5982\u4f55\u5728\u5c06\u67d0\u4e2a\u529f\u80fd\u6dfb\u52a0\u5230 WordPress \u4e3b\u9898\u4e4b\u524d\u8f7b\u677e\u68c0\u67e5\u8be5\u529f\u80fd\u662f\u5426\u5b58\u5728\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.wpbeginner.com\/wp-content\/uploads\/2021\/10\/check-if-function-exists-when-adding-in-WordPress-theme-og.png\" alt=\"\u68c0\u67e5 WordPress \u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2a\u51fd\u6570\" class=\"wp-image-102216\" title=\"\u68c0\u67e5 WordPress \u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2a\u51fd\u6570\"\/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u8981\u5c06\u201cIf Function Exists\u201d\u6dfb\u52a0\u5230\u60a8\u7684\u81ea\u5b9a\u4e49\u4ee3\u7801\u4e2d\uff1f<\/h4>\n\n\n\n<p>WordPress\u4e3b\u8981\u662f\u7528<a href=\"https:\/\/www.wpbeginner.com\/glossary\/php\/\">PHP\u7f16\u7a0b\u8bed\u8a00<\/a>\u7f16\u5199\u7684\u3002PHP \u662f\u4e00\u79cd\u670d\u52a1\u5668\u7aef\u7f16\u7a0b\u8bed\u8a00\uff0c\u8fd0\u884c\u5728<a href=\"https:\/\/www.wpbeginner.com\/wordpress-hosting\/\">WordPress \u6258\u7ba1<\/a>\u63d0\u4f9b\u5546\u7684\u670d\u52a1\u5668\u4e0a\u3002<\/p>\n\n\n\n<p>\u7531\u4e8e PHP \u5fc5\u987b\u5728\u9875\u9762\u52a0\u8f7d\u5230\u8bbf\u95ee\u8005\u7684\u6d4f\u89c8\u5668\u4e2d\u4e4b\u524d\u5b8c\u6210\u8fd0\u884c\uff0c\u56e0\u6b64\u5b83\u6709\u4e00\u5b9a\u7684\u9650\u5236\u3002\u8fd9\u4e9b\u9650\u5236\u4e4b\u4e00\u662f\uff0c\u5982\u679c\u51fa\u73b0\u95ee\u9898\uff0c\u53ef\u80fd\u4f1a\u963b\u6b62\u6574\u4e2a\u9875\u9762\u52a0\u8f7d\u3002<\/p>\n\n\n\n<p>\u5728 WordPress \u4e2d\uff0c\u5982\u679c\u7f3a\u5c11\u7684\u51fd\u6570\u963b\u6b62\u5176\u4f59\u4ee3\u7801\u8fd0\u884c\uff0c\u90a3\u4e48\u5b83\u4f1a\u505c\u6b62\u5e76\u663e\u793a<a href=\"https:\/\/www.wpbeginner.com\/wp-tutorials\/how-to-fix-the-wordpress-white-screen-of-death\/\">\u4e25\u91cd\u9519\u8bef<\/a>\u6216\u81f4\u547d\u9519\u8bef\u6d88\u606f\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.wpbeginner.com\/wp-content\/uploads\/2020\/12\/wp-criticial-error-message.png\" alt=\"WordPress \u4e25\u91cd\u9519\u8bef\u6d88\u606f\" class=\"wp-image-87828\" title=\"WordPress \u4e25\u91cd\u9519\u8bef\u6d88\u606f\"\/><\/figure>\n\n\n\n<p>\u4ec0\u4e48\u4f1a\u5bfc\u81f4\u67d0\u4e2a\u529f\u80fd\u7a81\u7136\u505c\u6b62\u5de5\u4f5c\u6216\u4e22\u5931\uff1f<\/p>\n\n\n\n<p>\u8fd9\u662f\u4e00\u4e2a\u6bd4\u60a8\u60f3\u8c61\u7684\u66f4<a href=\"https:\/\/www.wpbeginner.com\/common-wordpress-errors-and-how-to-fix-them\/\">\u5e38\u89c1\u7684 WordPress \u9519\u8bef\u3002<\/a><\/p>\n\n\n\n<p>\u4f8b\u5982\uff0c\u5047\u8bbe\u60a8\u7684 WordPress \u63d2\u4ef6\u4e4b\u4e00\u9644\u5e26\u4e86\u4e00\u9879\u5df2\u6dfb\u52a0\u5230\u4e3b\u9898\u9875\u811a\u533a\u57df\u7684\u529f\u80fd\u3002\u505c\u7528\u8be5\u63d2\u4ef6\u5c06\u4f7f\u8be5\u529f\u80fd\u6d88\u5931\u5e76\u5bfc\u81f4\u60a8\u7684 WordPress \u7f51\u7ad9\u51fa\u73b0<a href=\"https:\/\/www.wpbeginner.com\/wp-tutorials\/how-to-fix-the-critical-error-in-wordpress\/\">\u4e25\u91cd\u9519\u8bef\u3002<\/a><\/p>\n\n\n\n<p>\u8bdd\u867d\u8fd9\u4e48\u8bf4\uff0c\u8ba9\u6211\u4eec\u770b\u770b\u5982\u4f55\u5728 WordPress \u4e3b\u9898\u6587\u4ef6\u4e2d\u6267\u884c\u67d0\u4e2a\u51fd\u6570\u4e4b\u524d\u8f7b\u677e\u68c0\u67e5\u8be5\u51fd\u6570\u662f\u5426\u5b58\u5728\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\u68c0\u67e5 WordPress \u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2a\u51fd\u6570<\/h4>\n\n\n\n<p>\u5e78\u8fd0\u7684\u662f\uff0cPHP \u7f16\u7a0b\u8bed\u8a00\u9644\u5e26\u4e86\u4e00\u4e2a\u5185\u7f6e\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5728\u6267\u884c\u51fd\u6570\u4e4b\u524d\u8f7b\u677e\u68c0\u67e5\u51fd\u6570\u662f\u5426\u5b58\u5728\u3002<\/p>\n\n\n\n<p>\u5047\u8bbe\u60a8\u6709\u4e00\u4e2a WordPress \u51fd\u6570\uff0c\u53ef\u4ee5\u663e\u793a\u5f53\u524d\u65f6\u95f4\u548c\u65f6\u533a\u4fe1\u606f\u3002\u8fd9\u662f\u4e00\u4e2a\u793a\u4f8b\u4ee3\u7801\u7247\u6bb5\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u5b83\u6765\u5c1d\u8bd5\u3002<\/p>\n\n\n\n<p>\u60a8\u53ef\u4ee5\u5c06\u5176\u76f4\u63a5\u6dfb\u52a0\u5230\u4e3b\u9898\u7684<a href=\"https:\/\/www.wpbeginner.com\/glossary\/functions-php\/\">functions.php \u6587\u4ef6<\/a>\u4e2d\u6216\u4f7f\u7528\u4ee3\u7801\u7247\u6bb5\u63d2\u4ef6\uff0c\u4f8b\u5982<a href=\"https:\/\/wordpress.org\/plugins\/insert-headers-and-footers\" target=\"_blank\" rel=\"noreferrer noopener\">WPCode<\/a>\uff08\u63a8\u8350\uff09\u3002\u60a8\u53ef\u4ee5\u67e5\u770b\u6211\u4eec\u5173\u4e8e<a href=\"https:\/\/www.wpbeginner.com\/plugins\/how-to-easily-add-custom-code-in-wordpress-without-breaking-your-site\/\">\u5982\u4f55\u5728 WordPress \u4e2d\u8f7b\u677e\u6dfb\u52a0\u81ea\u5b9a\u4e49\u4ee3\u7801\u7684<\/a>\u6307\u5357\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>12345<\/td><td><code>\/\/display current time with timezone<\/code><code>function<\/code><code>wpb_show_timezone() {<\/code><code>$better_time<\/code><code>= current_time(<\/code><code>'F j, Y g:i a e'<\/code><code>);<\/code><code>echo<\/code><code>\"&lt;p&gt;The current time is \"<\/code><code>. <\/code><code>$better_time<\/code><code>.<\/code><code>\"&lt;\/p&gt;\"<\/code><code>;<\/code><code>}<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7531<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/wpcode.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">WPCode\u4e0e \u2764\ufe0f \u4e3b\u529e<\/a><\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/library.wpcode.com\/use-snippet\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u5728 WordPress \u4e2d\u4e00\u952e\u4f7f\u7528<\/a><\/p>\n\n\n\n<p>\u8981\u8c03\u7528\u6b64\u51fd\u6570\uff0c\u60a8\u9700\u8981\u5728 WordPress \u4e3b\u9898\u4e2d\u8981\u663e\u793a\u5f53\u524d\u65f6\u95f4\u7684\u4efb\u610f\u4f4d\u7f6e\u6dfb\u52a0\u4ee5\u4e0b\u4ee3\u7801\u3002<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1<\/td><td><code>&lt;?php wpb_show_timezone(); ?&gt;<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7531<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/wpcode.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">WPCode\u4e0e \u2764\ufe0f \u4e3b\u529e<\/a><\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/library.wpcode.com\/use-snippet\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u5728 WordPress \u4e2d\u4e00\u952e\u4f7f\u7528<\/a><\/p>\n\n\n\n<p><a href=\"https:\/\/www.wpbeginner.com\/guides\/\">\u8fd9\u5c31\u662f\u6211\u4eec\u7684\u6d4b\u8bd5\u7f51\u7ad9<\/a>\u4e0a\u7684\u6837\u5b50\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.wpbeginner.com\/wp-content\/uploads\/2021\/10\/function-runs-normally.png\" alt=\"\u529f\u80fd\u6b63\u5e38\u8fd0\u884c\" class=\"wp-image-102261\" title=\"\u529f\u80fd\u6b63\u5e38\u8fd0\u884c\"\/><\/figure>\n\n\n\n<p>\u73b0\u5728\uff0c\u5982\u679c\u8d1f\u8d23\u6267\u884c\u8fd9\u4e2a\u51fd\u6570\u7684\u4ee3\u7801\u6d88\u5931\u4e86\uff0c\u4f1a\u53d1\u751f\u4ec0\u4e48\uff1f<\/p>\n\n\n\n<p>\u5bf9\u8be5\u51fd\u6570\u7684\u8c03\u7528\u4f1a\u50cf\u8fd9\u6837\u7834\u574f\u60a8\u7684\u7f51\u7ad9\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"https:\/\/www.wpbeginner.com\/wp-content\/uploads\/2021\/10\/critical-error-wp.png\" alt=\"WordPress \u4e2d\u7684\u4e25\u91cd\u9519\u8bef\" class=\"wp-image-102260\" title=\"WordPress \u4e2d\u7684\u4e25\u91cd\u9519\u8bef\"\/><\/figure>\n\n\n\n<p>\u8ba9\u6211\u4eec\u6dfb\u52a0\u4e00\u4e2a\u68c0\u67e5\u4ee5\u786e\u4fdd\u6b64\u4ee3\u7801\u4ec5\u5728\u8be5\u51fd\u6570\u5b58\u5728\u65f6\u8fd0\u884c\u3002<\/p>\n\n\n\n<p>\u540c\u6837\uff0c\u60a8\u9700\u8981\u5c06\u4ee3\u7801\u76f4\u63a5\u6dfb\u52a0\u5230\u4e3b\u9898\u7684functions.php\u6587\u4ef6\u4e2d\u6216\u4f7f\u7528\u4ee3\u7801\u7247\u6bb5\u63d2\u4ef6\uff0c\u4f8b\u5982<a href=\"https:\/\/wordpress.org\/plugins\/insert-headers-and-footers\" target=\"_blank\" rel=\"noreferrer noopener\">WPCode<\/a>\uff08\u63a8\u8350\uff09\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td>1234567<\/td><td><code>&lt;?php<\/code><code>if<\/code><code>( function_exists(<\/code><code>'wpb_show_timezone'<\/code><code>)) {<\/code><code>wpb_show_timezone();<\/code><code>} <\/code><code>else<\/code><code>{<\/code><code>\/\/ do nothing<\/code><code>}<\/code><code>?&gt;<\/code><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>\u7531<\/p>\n\n\n\n<p><strong><a href=\"https:\/\/wpcode.com\/\" target=\"_blank\" rel=\"noreferrer noopener\">WPCode\u4e0e \u2764\ufe0f \u4e3b\u529e<\/a><\/strong><\/p>\n\n\n\n<p><a href=\"https:\/\/library.wpcode.com\/use-snippet\/\" target=\"_blank\" rel=\"noreferrer noopener\">\u5728 WordPress \u4e2d\u4e00\u952e\u4f7f\u7528<\/a><\/p>\n\n\n\n<p>\u5728\u6b64\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u8be5<code>function_exists()<\/code>\u51fd\u6570\u3002\u8be5\u51fd\u6570\u68c0\u67e5\u51fd\u6570\u662f\u5426\u5b58\u5728\u5e76\u8fd4\u56de True \u6216 False\u3002<\/p>\n\n\n\n<p>\u7136\u540e\uff0c\u6211\u4eec\u6dfb\u52a0\u4e86\u4e00\u4e2a if-else 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href=\"https:\/\/www.wpbeginner.com\/beginners-guide\/beginners-guide-to-troubleshooting-wordpress-errors-step-by-step\/\">WordPress \u6545\u969c\u6392\u9664\u6307\u5357<\/a>\u6216\u6211\u4eec\u7684\u4e13\u5bb6\u7cbe\u9009\u7684\u6700\u4f73<a href=\"https:\/\/www.wpbeginner.com\/beginners-guide\/best-drag-and-drop-page-builders-for-wordpress\/\">\u62d6\u653e WordPress \u9875\u9762\u6784\u5efa\u5668<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\uff0c\u4e00\u4f4d\u7528\u6237\u8be2\u95ee\u6211\u4eec\u5982\u4f55\u5728\u5411\u4f9d\u8d56 PHP \u51fd\u6570\u7684 WordPress \u7f51\u7ad9\u6dfb\u52a0\u4e00\u4e9b\u65b0\u4ee3\u7801\u4e4b\u524d\u68c0\u67e5\u8be5\u51fd\u6570\u662f\u5426\u5b58 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/wpeyes.com\/wordpress\/archives\/3148\"> <span class=\"screen-reader-text\">\u6700\u4f73\u5b9e\u8df5\uff1a\u5728 WordPress 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