{"id":47056,"date":"2024-12-02T09:17:56","date_gmt":"2024-12-02T01:17:56","guid":{"rendered":"https:\/\/fwq.ai\/blog\/47056\/"},"modified":"2024-12-02T09:17:56","modified_gmt":"2024-12-02T01:17:56","slug":"php-%e5%87%bd%e6%95%b0%e6%8c%89%e7%94%a8%e9%80%94%e5%a6%82%e4%bd%95%e5%88%86%e7%b1%bb%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/47056\/","title":{"rendered":"PHP \u51fd\u6570\u6309\u7528\u9014\u5982\u4f55\u5206\u7c7b\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

PHP \u51fd\u6570\u6309\u7528\u9014\u5982\u4f55\u5206\u7c7b\uff1f<\/h1>\n

\u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aPHP \u51fd\u6570\u6309\u7528\u9014\u5982\u4f55\u5206\u7c7b\uff1f\u300b<\/span>\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec<\/span>\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~<\/p>\n

PHP \u51fd\u6570\u5e93\u6309\u7528\u9014\u5206\u7c7b\u4e3a\uff1a\u5b57\u7b26\u4e32\u64cd\u4f5c\uff08\u83b7\u53d6\u957f\u5ea6\u3001\u67e5\u627e\u5b50\u5b57\u7b26\u4e32\u7b49\uff09\u3001\u6570\u503c\u64cd\u4f5c\uff08\u83b7\u53d6\u7edd\u5bf9\u503c\u3001\u56db\u820d\u4e94\u5165\u7b49\uff09\u3001\u6570\u7ec4\u5904\u7406\uff08\u83b7\u53d6\u952e\u503c\u3001\u5408\u5e76\u7b49\uff09\u3001\u6587\u4ef6\u64cd\u4f5c\uff08\u8bfb\u53d6\u3001\u5199\u5165\u7b49\uff09\u4ee5\u53ca\u6570\u636e\u5e93\u64cd\u4f5c\uff08\u8fde\u63a5\u3001\u67e5\u8be2\u7b49\uff09\u3002<\/p>\n

\"PHP<\/p>\n

PHP \u51fd\u6570\u6309\u7528\u9014\u5206\u7c7b<\/h2>\n

PHP \u62e5\u6709\u4e30\u5bcc\u7684\u51fd\u6570\u5e93\uff0c\u8fd9\u4e9b\u51fd\u6570\u53ef\u4ee5\u6309\u7528\u9014\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u4e3b\u8981\u7c7b\u522b\uff1a<\/p>\n

\u5b57\u7b26\u4e32\u64cd\u4f5c<\/strong><\/h3>\n
    \n
  • strlen()<\/code>\uff1a\u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6<\/li>\n
  • strpos()<\/code>\uff1a\u67e5\u627e\u5b50\u5b57\u7b26\u4e32\u5728\u5b57\u7b26\u4e32\u4e2d\u7684\u4f4d\u7f6e<\/li>\n
  • substr()<\/code>\uff1a\u4ece\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32<\/li>\n
  • strtoupper()<\/code>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199<\/li>\n
  • strtolower()<\/code>\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5c0f\u5199<\/li>\n<\/ul>\n

    \u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n

    $str = \"Hello World\";\n\n\/\/ \u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6\necho strlen($str); \/\/ \u8f93\u51fa\uff1a11\n\n\/\/ \u67e5\u627e \"World\" \u5728\u5b57\u7b26\u4e32\u4e2d\u7684\u4f4d\u7f6e\necho strpos($str, \"World\"); \/\/ \u8f93\u51fa\uff1a6\n\n\/\/ \u63d0\u53d6\u5b50\u5b57\u7b26\u4e32\necho substr($str, 0, 5); \/\/ \u8f93\u51fa\uff1aHello<\/pre>\n
    \u6570\u503c\u64cd\u4f5c<\/strong><\/h3>\n
      \n
    • abs()<\/code>\uff1a\u83b7\u53d6\u7edd\u5bf9\u503c<\/li>\n
    • round()<\/code>\uff1a\u56db\u820d\u4e94\u5165<\/li>\n
    • floor()<\/code>\uff1a\u5411\u4e0b\u53d6\u6574<\/li>\n
    • ceil()<\/code>\uff1a\u5411\u4e0a\u53d6\u6574<\/li>\n
    • max()<\/code>\uff1a\u83b7\u53d6\u591a\u4e2a\u503c\u4e2d\u7684\u6700\u5927\u503c<\/li>\n
    • min()<\/code>\uff1a\u83b7\u53d6\u591a\u4e2a\u503c\u4e2d\u7684\u6700\u5c0f\u503c<\/li>\n<\/ul>\n
      \u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
      $num1 = -5;\n$num2 = 10.5;\n\n\/\/ \u83b7\u53d6\u7edd\u5bf9\u503c\necho abs($num1); \/\/ \u8f93\u51fa\uff1a5\n\n\/\/ \u56db\u820d\u4e94\u5165\necho round($num2); \/\/ \u8f93\u51fa\uff1a11\n\n\/\/ \u5411\u4e0b\u53d6\u6574\necho floor($num2); \/\/ \u8f93\u51fa\uff1a10\n\n\/\/ \u5411\u4e0a\u53d6\u6574\necho ceil($num2); \/\/ \u8f93\u51fa\uff1a11<\/pre>\n
      \u6570\u7ec4\u5904\u7406<\/strong><\/h3>\n
        \n
      • array_keys()<\/code>\uff1a\u83b7\u53d6\u6570\u7ec4\u6240\u6709\u952e<\/li>\n
      • array_values()<\/code>\uff1a\u83b7\u53d6\u6570\u7ec4\u6240\u6709\u503c<\/li>\n
      • array_merge()<\/code>\uff1a\u5408\u5e76\u591a\u4e2a\u6570\u7ec4<\/li>\n
      • array_diff()<\/code>\uff1a\u83b7\u53d6\u6570\u7ec4\u4e4b\u95f4\u7684\u5dee\u5f02<\/li>\n
      • count()<\/code>\uff1a\u83b7\u53d6\u6570\u7ec4\u5143\u7d20\u4e2a\u6570<\/li>\n<\/ul>\n
        \u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
        $arr1 = [1, 2, 3];\n$arr2 = [4, 5, 6];\n\n\/\/ \u83b7\u53d6\u6570\u7ec4\u6240\u6709\u952e\nprint_r(array_keys($arr1)); \/\/ \u8f93\u51fa\uff1a[0, 1, 2]\n\n\/\/ \u83b7\u53d6\u6570\u7ec4\u6240\u6709\u503c\nprint_r(array_values($arr1)); \/\/ \u8f93\u51fa\uff1a[1, 2, 3]\n\n\/\/ \u5408\u5e76\u591a\u4e2a\u6570\u7ec4\n$arr3 = array_merge($arr1, $arr2); \/\/ \u8f93\u51fa\uff1a[1, 2, 3, 4, 5, 6]<\/pre>\n
        \u6587\u4ef6\u64cd\u4f5c<\/strong><\/h3>\n
          \n
        • file_get_contents()<\/code>\uff1a\u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9<\/li>\n
        • file_put_contents()<\/code>\uff1a\u5199\u5165\u6587\u4ef6\u5185\u5bb9<\/li>\n
        • fopen()<\/code>\uff1a\u6253\u5f00\u6587\u4ef6\u5e76\u8fd4\u56de\u6587\u4ef6\u53e5\u67c4<\/li>\n
        • fwrite()<\/code>\uff1a\u5411\u6587\u4ef6\u53e5\u67c4\u5199\u5165\u6570\u636e<\/li>\n
        • fclose()<\/code>\uff1a\u5173\u95ed\u6587\u4ef6\u53e5\u67c4<\/li>\n<\/ul>\n
          \u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
          \/\/ \u8bfb\u53d6\u6587\u4ef6\u5185\u5bb9\n$content = file_get_contents('myfile.txt');\n\n\/\/ \u5411\u6587\u4ef6\u5199\u5165\u5185\u5bb9\nfile_put_contents('myfile.txt', 'Hello World');\n\n\/\/ \u6253\u5f00\u6587\u4ef6\u5e76\u5199\u5165\u4e00\u884c\u6570\u636e\n$file = fopen('myfile.txt', 'a');\nfwrite($file, \"\\nThis is a new line.\");\nfclose($file);<\/pre>\n
          \u6570\u636e\u5e93\u64cd\u4f5c<\/strong><\/h3>\n
            \n
          • mysqli_connect()<\/code>\uff1a\u8fde\u63a5\u5230 MySQL \u6570\u636e\u5e93<\/li>\n
          • mysqli_query()<\/code>\uff1a\u6267\u884c SQL \u67e5\u8be2<\/li>\n
          • mysqli_fetch_assoc()<\/code>\uff1a\u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u7684\u5173\u8054\u6570\u7ec4<\/li>\n
          • mysqli_close()<\/code>\uff1a\u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5<\/li>\n<\/ul>\n
            \u5b9e\u6218\u6848\u4f8b\uff1a<\/strong><\/p>\n
            \/\/ \u8fde\u63a5\u5230\u6570\u636e\u5e93\n$mysqli = mysqli_connect('localhost', 'username', 'password', 'database');\n\n\/\/ \u6267\u884c SQL \u67e5\u8be2\n$result = mysqli_query($mysqli, \"SELECT * FROM users\");\n\n\/\/ \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\u7684\u5173\u8054\u6570\u7ec4\n$row = mysqli_fetch_assoc($result);\n\n\/\/ \u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\nmysqli_close($mysqli);<\/pre>\n
            \u5230\u8fd9\u91cc\uff0c\u6211\u4eec\u4e5f\u5c31\u8bb2\u5b8c\u4e86\u300aPHP \u51fd\u6570\u6309\u7528\u9014\u5982\u4f55\u5206\u7c7b\uff1f\u300b\u7684\u5185\u5bb9\u4e86\u3002\u4e2a\u4eba\u8ba4\u4e3a\uff0c\u57fa\u7840\u77e5\u8bc6\u7684\u5b66\u4e60\u548c\u5de9\u56fa\uff0c\u662f\u4e3a\u4e86\u66f4\u597d\u7684\u5c06\u5176\u8fd0\u7528\u5230\u9879\u76ee\u4e2d\uff0c\u6b22\u8fce\u5173\u6ce8\u7c73\u4e91\u516c\u4f17\u53f7\uff0c\u5e26\u4f60\u4e86\u89e3\u66f4\u591a\u5173\u4e8ePHP\u51fd\u6570,\u7528\u9014\u5206\u7c7b\u7684\u77e5\u8bc6\u70b9\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
            PHP \u51fd\u6570\u6309\u7528\u9014\u5982\u4f55\u5206\u7c7b\uff1f \u4eca\u5929\u7c73\u4e91\u7ed9\u5927\u5bb6\u5e26\u6765\u4e86\u300aPHP \u51fd\u6570\u6309\u7528\u9014\u5982\u4f55\u5206\u7c7b\uff1f\u300b\uff0c\u5176\u4e2d\u6d89\u53ca\u5230\u7684\u77e5\u8bc6\u70b9\u5305\u62ec\u7b49\u7b49\uff0c\u65e0\u8bba\u4f60\u662f\u5c0f\u767d\u8fd8\u662f\u8001\u624b\uff0c\u90fd\u9002\u5408\u770b\u4e00\u770b\u54e6~\u6709\u597d\u7684\u5efa\u8bae\u4e5f\u6b22\u8fce\u5927\u5bb6\u5728\u8bc4\u8bba\u7559\u8a00\uff0c\u82e5\u662f\u770b\u5b8c\u6709\u6240\u6536\u83b7\uff0c\u4e5f\u5e0c\u671b\u5927\u5bb6\u80fd\u591a\u591a\u70b9\u8d5e\u652f\u6301\u5440\uff01\u4e00\u8d77\u52a0\u6cb9\u5b66\u4e60~ PHP \u51fd\u6570\u5e93\u6309\u7528\u9014\u5206\u7c7b\u4e3a\uff1a\u5b57\u7b26\u4e32\u64cd\u4f5c\uff08\u83b7\u53d6\u957f\u5ea6\u3001\u67e5\u627e\u5b50\u5b57\u7b26\u4e32\u7b49\uff09\u3001\u6570\u503c\u64cd\u4f5c\uff08\u83b7\u53d6\u7edd\u5bf9\u503c\u3001\u56db\u820d\u4e94\u5165\u7b49\uff09\u3001\u6570\u7ec4\u5904\u7406\uff08\u83b7\u53d6\u952e\u503c\u3001\u5408\u5e76\u7b49\uff09\u3001\u6587\u4ef6\u64cd\u4f5c\uff08\u8bfb\u53d6\u3001\u5199\u5165\u7b49\uff09\u4ee5\u53ca\u6570\u636e\u5e93\u64cd\u4f5c\uff08\u8fde\u63a5\u3001\u67e5\u8be2\u7b49\uff09\u3002 PHP \u51fd\u6570\u6309\u7528\u9014\u5206\u7c7b PHP \u62e5\u6709\u4e30\u5bcc\u7684\u51fd\u6570\u5e93\uff0c\u8fd9\u4e9b\u51fd\u6570\u53ef\u4ee5\u6309\u7528\u9014\u5206\u4e3a\u4ee5\u4e0b\u51e0\u4e2a\u4e3b\u8981\u7c7b\u522b\uff1a \u5b57\u7b26\u4e32\u64cd\u4f5c strlen()\uff1a\u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6 strpos()\uff1a\u67e5\u627e\u5b50\u5b57\u7b26\u4e32\u5728\u5b57\u7b26\u4e32\u4e2d\u7684\u4f4d\u7f6e substr()\uff1a\u4ece\u5b57\u7b26\u4e32\u4e2d\u63d0\u53d6\u5b50\u5b57\u7b26\u4e32 strtoupper()\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5927\u5199 strtolower()\uff1a\u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5c0f\u5199 \u5b9e\u6218\u6848\u4f8b\uff1a $str = “Hello World”; \/\/ \u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6 echo strlen($str); \/\/ \u8f93\u51fa\uff1a11 \/\/ \u67e5\u627e “World” \u5728\u5b57\u7b26\u4e32\u4e2d\u7684\u4f4d\u7f6e echo strpos($str, “World”); \/\/ \u8f93\u51fa\uff1a6 \/\/ \u63d0\u53d6\u5b50\u5b57\u7b26\u4e32 echo substr($str, 0, 5); \/\/ \u8f93\u51fa\uff1aHello \u6570\u503c\u64cd\u4f5c abs()\uff1a\u83b7\u53d6\u7edd\u5bf9\u503c round()\uff1a\u56db\u820d\u4e94\u5165 floor()\uff1a\u5411\u4e0b\u53d6\u6574 ceil()\uff1a\u5411\u4e0a\u53d6\u6574 max()\uff1a\u83b7\u53d6\u591a\u4e2a\u503c\u4e2d\u7684\u6700\u5927\u503c min()\uff1a\u83b7\u53d6\u591a\u4e2a\u503c\u4e2d\u7684\u6700\u5c0f\u503c \u5b9e\u6218\u6848\u4f8b\uff1a $num1 = -5; […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-47056","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47056","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=47056"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/47056\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=47056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=47056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=47056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}