{"id":12822,"date":"2022-11-15T17:47:15","date_gmt":"2022-11-15T09:47:15","guid":{"rendered":"https:\/\/miriammibao.com\/?p=12822"},"modified":"2022-12-26T17:14:25","modified_gmt":"2022-12-26T09:14:25","slug":"%e9%97%9c%e6%96%bc-wordpress-%e7%9a%84-transients","status":"publish","type":"post","link":"https:\/\/miriammibao.com\/%e9%97%9c%e6%96%bc-wordpress-%e7%9a%84-transients\/","title":{"rendered":"\u95dc\u65bc WordPress \u7684 Transients"},"content":{"rendered":"\n

\u5728 WordPress \u751f\u614b\u7cfb\u7d71\u4e2d\uff0cTransients \u662f\u7a0b\u5f0f\u5eab\u4e2d\u5f88\u5c11\u88ab\u63d0\u53ca\u7684\u90a3\u4e00\u584a\uff1b\u4f46\u662f\uff0c\u5c0d\u65bc\u958b\u767c\u4eba\u54e1\u4f86\u8aaa\uff0c\u5728\u7de8\u5beb\u5916\u639b\u6216\u4e3b\u984c\u7684\u7a0b\u5f0f\u78bc\u985e\u578b\u4e2d\uff0cTransients \u53ef\u4ee5\u5927\u5927\u63d0\u5347\u7a0b\u5f0f\u5eab\u7684\u6027\u80fd\uff1b\u5c24\u5176\u662f\u7576\u6b63\u8981\u904b\u884c\u8907\u96dc\u7684\u6578\u64da\u5eab\u67e5\u8a62\uff0c\u6216\u8005\u662f\u8abf\u7528\u4e0d\u7d93\u5e38\u66f4\u6539\u7d50\u679c\u7684\u5916\u90e8 API\uff0c\u5b83\u5c07\u6703\u76f4\u63a5\u63d0\u4f9b\u8abf\u7528\u81e8\u6642\u5132\u5b58\u7684\u6578\u64da\uff0c\u9019\u610f\u5473\u8457\u9801\u9762\u8f09\u5165\u7684\u901f\u5ea6\u6703\u66f4\u5feb\u3002

\u9019\u7bc7\u6587\u7ae0\u5c07\u89e3\u91cb\u4ec0\u9ebc\u662f Transients \uff0c\u5b83\u5011\u53c8\u5982\u4f55\u5728 WordPress \u4e2d\u5de5\u4f5c\uff0c\u4ee5\u53ca\u5982\u4f55\u5728\u7a0b\u5f0f\u78bc\u4e2d\u904b\u7528 Transients \u4f86\u63d0\u9ad8\u4e3b\u984c\u548c\u5916\u639b\u7684\u6027\u80fd\u3002<\/p>\n\n\n

\n
\n
\n

\u4ec0\u9ebc\u662f Transients\uff0c\u70ba\u4ec0\u9ebc\u9700\u8981\u5b83\u5011\uff1f<\/h2>\n
\n\n

WordPress Transients API<\/a>\u00a0\u662f WordPress \u7a0b\u5f0f\u5eab\u7684\u4e00\u90e8\u5206\uff0c\u5141\u8a31\u5916\u639b\u548c\u4e3b\u984c\u7684\u958b\u767c\u4eba\u54e1\u5b58\u5132\u5feb\u53d6\u8cc7\u6599\u3002\u00a0\u800c\u9019\u4e9b\u8cc7\u6599\u6700\u7d42\u6703\u904e\u671f\uff0c\u4e4b\u5f8c\u4e5f\u6703\u88ab\u81ea\u52d5\u522a\u9664\u3002<\/p>\n

Transients \u901a\u5e38\u7528\u4f86\u5feb\u53d6\u3016\u4f86\u81ea\u53ef\u80fd\u5f15\u5165\u5ef6\u9072\u7684\u5916\u90e8 API \u8acb\u6c42\u3017\u7684\u6578\u64da\uff0c\u6216\u8005\u662f\u4f86\u81ea\u3016\u7de9\u6162\u7684\u8cc7\u6599\u5eab\u67e5\u8a62\u3017\u7684\u6578\u64da\uff0c\u56e0\u70ba\u9019\u4e9b\u6578\u64da\u5728\u6bcf\u6b21\u9801\u9762\u8f09\u5165\u7684\u6642\u5019\u6703\u964d\u4f4e\u7db2\u7ad9\u7684\u6027\u80fd\u3002<\/p>\n\n<\/div>\n<\/div>\n

\n

Transients \u5982\u4f55\u904b\u4f5c\uff1f<\/h2>\n
\n\n

\u5728 WordPress \u6578\u64da\u5eab\u4e2d\uff0cTransients \u6703\u88ab\u5132\u5b58\u6210\u5f8c\u7db4\u70ba\u3016\u00a0wp_options<\/code>\u00a0\u3017\u7684\u6a94\u6848\uff0c\u5f88\u985e\u4f3c\u65bc\u00a0Options API<\/a>\uff1b\u4e0d\u904e\uff0c\u5169\u8005\u7684\u5340\u5225\u5728\u65bc Transients \u6709\u6642\u6548\u6027\uff0c\u6642\u6548\u904e\u4e86\u5c31\u6703\u81ea\u52d5\u88ab\u522a\u9664\uff0c\u800c WordPress Options \u5247\u4e0d\u6703\u3002
\u6b63\u56e0\u70ba Transients \u6709\u6642\u6548\u6027\uff0c\u6240\u4ee5\uff0c\u7de8\u5beb\u7a0b\u5f0f\u78bc\u61c9\u8003\u616e\u4e26\u8a08\u7b97 Transients \u7684\u6642\u6548\uff0c\u5728\u53ef\u80fd\u9700\u8981\u518d\u6b21\u8abf\u7528\u4e4b\u524d\u91cd\u65b0\u586b\u5145 Transients \uff0c\u4ee5\u9632\u5728\u767c\u51fa\u8acb\u6c42\u6642\u77ac\u614b\u4e0d\u518d\u5b58\u5728\u3002
\u7de8\u5beb Transients \u7a0b\u5f0f\u78bc\uff0c\u6709 3 \u500b\u4e3b\u8981\u51fd\u6578\uff1a\u5305\u542b set_transient()<\/mark><\/code>\u3001get_transient()<\/mark><\/code> \u4ee5\u53ca delete_transient()<\/mark><\/code> \uff0c\u4f9d\u5e8f\u70ba\u3016\u8a2d\u5b9a Transients\u3017\u3001\u3016\u53d6\u5f97 Transients\u3017\u4ee5\u522a\u9664 Transients\u3017\u3002<\/p>\n

\u51fd\u6578\u7bc4\u4f8b\u5982\u4e0b\uff1a<\/p>\n\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n\n\n

\/\/ Setting a value\nset_transient( $name, $value, $expiration );\n\n\/\/ Accessing a value\nget_transient( $name );\n\n\/\/ Removing a value\ndelete_transient( $name );<\/pre>\n\n\n\n

\u8209\u500b\u4f8b\u5b50\u4f86\u793a\u7bc4 Transients \u7684\u5de5\u4f5c\u539f\u7406\uff0c\u5047\u8a2d\uff0c\u4f60\u60f3\u8981\u5728\u7db2\u7ad9\u986f\u793a\u80fd\u5920\u6bcf\u65e5\u81ea\u52d5\u66f4\u65b0\u7684\u3016\u540d\u4eba\u540d\u8a00\u3017\uff0cZen Quotes<\/a> \u662f\u4e00\u500b\u5f88\u68d2\u7684\u4f86\u6e90\uff0c\u4e0d\u9700\u8981\u5bc6\u9470\u5c31\u53ef\u4ee5\u900f\u904e API \u4f86\u53d6\u5f97\u670d\u52d9\u3002\u6bd4\u5982\uff0cZen Quotes \u63d0\u4f9b\u4e86\u4e00\u7d44\u3016\u7576\u65e5\u540d\u8a00\u3017\u7684 API \u7aef\u9ede\uff1ahttps:\/\/zenquotes.io\/api\/today<\/mark>\uff0c\u6211\u5011\u53ef\u4ee5\u900f\u904e php \u51fd\u5f0f\u8abf\u7528 API \u4f86\u53d6\u5f97\u3016\u7576\u65e5\u540d\u8a00\u3017\u7684\u5be6\u6642\u66f4\u65b0\uff0c\u793a\u7bc4\u7684\u51fd\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

$response = wp_remote_get( 'https:\/\/zenquotes.io\/api\/today );\n$body     = json_decode( wp_remote_retrieve_body( $response ) );\n$quote = $body->q;<\/pre>\n\n\n\n

\u800c\u9019\u6bb5\u7a0b\u5f0f\u78bc\u53ef\u4ee5\u653e\u5728\u4e3b\u984c\u7684 php \u6a94\u6848\u4e2d\uff0c\u4e0d\u904e\uff0c\u9019\u6642\u5019\u554f\u984c\u5c31\u4f86\u4e86\uff0c\u56e0\u70ba\u6bcf\u6b21\u6709\u8a2a\u5ba2\u8f09\u5165\u9801\u9762\u7684\u6642\u5019\uff0c\u5b83\u90fd\u6703\u8abf\u7528 API\uff0c\u9019\u5c07\u6703\u9020\u6210\u904e\u591a\u7684 API \u8acb\u6c42\uff0c\u6b64\u5916\uff0c\u6839\u64da API \u7684\u97ff\u61c9\u6642\u9593\uff0c\u9084\u53ef\u80fd\u6e1b\u6162\u9801\u9762\u8f09\u5165\u7684\u901f\u5ea6\u3002\u6240\u4ee5\uff0c\u66f4\u597d\u7684\u4f5c\u6cd5\u662f\u4f7f\u7528 Transients \u4f86\u78ba\u4fdd\u53ea\u6709\u7576 Zen Quotes \u63d0\u4f9b\u7684\u7aef\u9ede\u66f4\u65b0\u7684\u6642\u5019\u624d\u9700\u8981\u8abf\u7528\u5be6\u6642 API\uff0c\u65bc\u662f\uff0c\u52a0\u5165 Transients \u7684\u7a0b\u5f0f\u78bc\uff0c\u4f86\u8a2d\u5b9a Transients \u7684\u5230\u671f\u6642\u9593\u5982\u4e0b\uff1a<\/p>\n\n\n\n

$response = wp_remote_get( 'https:\/\/zenquotes.io\/api\/today' );\n$body     = json_decode( wp_remote_retrieve_body( $response ) );\n$quote = $body->q;\n\nset_transient( 'quote', $quote, DAY_IN_SECONDS );<\/pre>\n\n\n\n

\u4ee5\u4e0a\u7684 Transients \u7a0b\u5f0f\u78bc\u662f\u5c07\u5c07 Transients \u8a2d\u7f6e\u70ba 24 \u5c0f\u6642\u5230\u671f\uff08WordPress\u00a0DAY_IN_SECONDS<\/code>\uff09\u3002
\u4e0d\u904e\uff0c\u4e8b\u60c5\u9084\u6c92\u5b8c\uff0c\u6211\u5011\u9084\u8981\u8a2d\u5b9a\u4e00\u500b\u6aa2\u67e5\u6a5f\u5236\u544a\u8a34\u5b83\uff1a\u300e\u53ea\u6709\u5728 Transients \u5230\u671f\u7684\u6642\u5019\u624d\u9700\u8981\u8abf\u7528\u5be6\u6642 API\u3002\u300f\uff0c\u5426\u5247\uff0c\u524d\u9762\u8a2d\u5b9a\u7684\u3016 24 \u5c0f\u6642\u5230\u671f\u3017\u4e5f\u6c92\u7528\uff0c\u51fd\u5f0f\u5982\u4e0b\uff1a<\/p>\n\n\n\n

if( get_transient( 'quote' ) ) {\n    $quote = get_transient( 'quote' );\n} else {\n    $response = wp_remote_get( 'https:\/\/zenquotes.io\/api\/today' );\n    $body     = json_decode( wp_remote_retrieve_body( $response ) );\n    $quote = $body->q;\n\n    set_transient( 'quote', $quote, DAY_IN_SECONDS );\n}<\/pre>\n\n\n\n

set_transient<\/mark><\/code>\u00a0\u548c\u00a0get_transient<\/mark><\/code><\/code> \u7684\u7528\u6cd5\u985e\u4f3c\u00a0\uff0c\u81f3\u65bc delete_transient<\/mark><\/code> \u7684\u7528\u6cd5\u5247\u662f\uff1a\u5047\u8a2d\uff0c\u60f3\u5728 Transients \u5230\u671f\u4e4b\u524d\u81ea\u52d5\u522a\u9664\u5b83\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n\n\n\n

delete_transient( 'quote' );<\/pre>\n\n\n\n

\u5728WordPress \u4e2d\u5e38\u898b\u7684 Transients \u7528\u6cd5<\/h2>\n\n\n\n

\u4ee5\u4e0b\u662f\u5e38\u898b\u7684\u5e7e\u7a2e Transients \u7684\u6df1\u5165\u4f7f\u7528\u3002<\/p>\n\n\n\n

\u5feb\u53d6\u9577\u6642\u9593\u904b\u884c\u7684\u6578\u64da\u5eab\u67e5\u8a62<\/h3>\n\n\n\n

WordPress \u7684\u6578\u64da\u5eab\u67e5\u8a62\u7684\u512a\u5316\u505a\u5f97\u5f88\u597d\uff0c\u50cf\u662f WP_Query<\/code><\/a>\u3002\u4f46\u662f\uff0c\u5982\u679c\u8981\u5f9e wp_postmeta<\/code>\u00a0\u67e5\u8a62\u5927\u91cf\u6578\u64da\uff0c\u90a3\u9ebc\uff0c\u5c31\u6703\u5f71\u97ff\u5230\u524d\u7aef\u7db2\u7ad9\u8f09\u5165\u7684\u6027\u80fd\uff0c\u5c24\u5176\u662f\u64c1\u6709\u4e0a\u842c\u6216\u6578\u5341\u842c\u5247\u6587\u7ae0\u7684\u7db2\u7ad9\u3002<\/p>\n\n\n\n

\u4f46\u662f\uff0c\u5982\u679c\u9019\u4e9b\u6587\u7ae0\u4e26\u4e0d\u662f\u7d93\u5e38\u66f4\u6539\uff0c\u5c31\u53ef\u4ee5\u57f7\u884c\u4e00\u6b21\u9577\u6642\u9593\u904b\u884c\u7684\u6578\u64da\u5eab\u67e5\u8a62\uff0c\u5c07\u67e5\u8a62\u7d50\u679c\u4fdd\u5b58\u5728 Transients \uff0c\u4e26\u4e14\u70ba Transients \u8a2d\u5b9a\u5230\u671f\u6642\u9593\uff0c\u7136\u5f8c\uff0c\u5f9e\u4fdd\u5b58\u7684 Transients \u70ba\u6bcf\u500b\u9801\u9762\u8996\u5716\u57f7\u884c\u67e5\u627e\uff0c\u9019\u5c07\u78ba\u4fdd\u5feb\u901f\u57f7\u884c\u5c0d\u8a72\u6578\u64da\u7684\u5f8c\u7e8c\u8abf\u7528\uff0c\u4f8b\u5982\uff0c\u53ef\u4ee5\u8a2d\u5b9a\u77ac\u614b\u7684\u5230\u671f\u6642\u9593\u70ba\u4e00\u5c0f\u6642\u3001\u4e00\u5929\u751a\u81f3\u662f\u66f4\u4e45\u7684\u6642\u9593\u3002 <\/p>\n\n\n\n

\u6e1b\u5c11\u5916\u90e8 API \u8acb\u6c42\u7684\u7b49\u5f85\u6642\u9593<\/h3>\n\n\n\n

\u53e6\u4e00\u500b\u5e38\u898b\u7684\u77ac\u614b\u7528\u6cd5\u5247\u662f\u900f\u904e API \u8abf\u7528\u5916\u90e8\u8cc7\u6e90\u3002\u56e0\u70ba\u6211\u5011\u7121\u6cd5\u63a7\u5236\u5916\u90e8\u8cc7\u6e90\u7684\u97ff\u61c9\u901f\u5ea6\u751a\u81f3\u662f\u6301\u7e8c\u53ef\u7528\u6027\uff0c\u65bc\u662f\uff0c\u4f7f\u7528 Transients \u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u9019\u7a2e\u60c5\u6cc1\u3002\u5c31\u50cf\u524d\u9762\u7684\u3016\u7576\u65e5\u540d\u8a00\u3017\u7684\u6848\u4f8b\uff0c\u6211\u5011\u53ef\u4ee5\u5c07\u9060\u7aef API \u8fd4\u56de\u7684\u6578\u64da\u66ab\u6642\u4fdd\u5b58\u5728 Transients \uff0c\u4e4b\u5f8c\u7684\u9801\u9762\u8f09\u5165\u5c31\u53ef\u4ee5\u5f9e\u9810\u5148\u4fdd\u5b58\u7684 Transients \u4e2d\u8b80\u53d6\u6578\u64da\uff0c\u800c\u4e0d\u662f\u91cd\u65b0\u8abf\u7528\uff0c\u9700\u8981\u8003\u616e\u7684\u5247\u662f\u6578\u64da\u66f4\u6539\u7684\u983b\u7387\u3002

\u5047\u8a2d\uff0c API \u8abf\u7528\u7684\u662f\u3016\u5929\u6c23\u3017\uff0c\u5e7e\u4e4e\u53ef\u8aaa\u662f\u9700\u8981\u5206\u79d2\u66f4\u65b0\u7684\u8cc7\u6599\uff0c\u90a3\u9ebc\uff0c Transients \u5c07\u7121\u6fdf\u65bc\u4e8b\u3002\u4f46\u662f\uff0c\u5982\u679c\u8981\u67e5\u8a62\u6216\u8abf\u7528\u7684\u8cc7\u6599\u6578\u5c0f\u6642\u66f4\u65b0\u5373\u53ef\uff0c\u90a3 Transients \u4fbf\u6709\u6a5f\u6703\u5e6b\u52a9\u63d0\u9ad8\u7db2\u7ad9\u7684\u6027\u80fd\uff0c\u4e5f\u80fd\u78ba\u4fdd\u7372\u5f97\u6240\u9700\u7684\u65b0\u6578\u64da\u3002<\/p>\n\n\n\n

Transients \u7684\u512a\u7f3a\u9ede<\/h2>\n\n\n\n

Transients \u53ef\u4ee5\u5927\u5927\u63d0\u9ad8\u7a0b\u5f0f\u78bc\u6027\u80fd\uff0c\u5c24\u5176\u662f\u9700\u8981\u7d93\u5e38\u4f7f\u7528\u9577\u6642\u9593\u904b\u884c\u7684\u67e5\u8a62\u6216\u57f7\u884c\u7684\u6e32\u67d3\u963b\u585e\u8acb\u6c42\uff0cTransients \u6539\u5584\u7684\u662f\u7a0b\u5f0f\u78bc\u4e2d\u7684\u6f5b\u5728\u6027\u80fd\u3002<\/p>\n\n\n\n

\u81f3\u65bc\u4f7f\u7528 Transients \u6700\u5927\u7684\u7f3a\u9ede\u5247\u662f\uff0c\u5373\u4f7f\u5df2\u8a2d\u5b9a\u4e86\u5230\u671f\u6642\u9593\uff0c\u4e5f\u4e0d\u80fd\u4fdd\u8b49\u5728\u5230\u671f\u4e4b\u524d\u7684 Transients \u4e00\u5b9a\u53ef\u7528\uff0c\u56e0\u6b64\uff0c\u5982\u679c\u6709\u9700\u8981\u5728\u6e96\u78ba\u6642\u9593\u8f49\u63db\u7684\u6578\u64da\uff0c\u90a3\u9ebc Transients \u53ef\u80fd\u4e0d\u662f\u6700\u4f73\u9078\u64c7\u3002

Transients \u6700\u7406\u60f3\u7684\u4f5c\u7528\u662f\u5728\u65bc\uff0c\u9700\u8981\u63d0\u53d6\u5927\u91cf\u6578\u64da\u6216\u8207\u5916\u90e8\u8cc7\u6e90\u7684\u4e3b\u984c\u6216\u5916\u639b\uff0c\u4e26\u4e14\u5c07\u5728\u9ad8\u6d41\u91cf\u7684\u7db2\u7ad9\u4e0a\u904b\u884c\u6642\uff0c\u90a3\u9ebc\uff0cTransients \u662f\u4e00\u500b\u6709\u7528\u7684\u6982\u5ff5\uff0c\u53bb\u5feb\u53d6\u9700\u8981\u9577\u6642\u9593\u6216\u7de9\u6162\u7684\u64cd\u4f5c\uff0c\u4ee5\u4fbf\u5728\u4e0d\u9700\u8981\u66f4\u65b0\u6578\u64da\u7684\u524d\u63d0\u4e0b\u4fdd\u6301\u8f03\u9ad8\u7684\u7db2\u7ad9\u6027\u80fd\u3002\u6b64\u5916\uff0c\u65e5\u76ca\u8907\u96dc\u7684\u7a0b\u5f0f\u78bc\u4e2d\uff0cTransients \u4e5f\u53ef\u4ee5\u78ba\u4fdd\u5f9e\u8907\u96dc\u7684\u7a0b\u5f0f\u5eab\u4e2d\u7372\u5f97\u6700\u4f73\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

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