{"id":262,"date":"2013-08-19T17:13:31","date_gmt":"2013-08-19T09:13:31","guid":{"rendered":"http:\/\/www.zyuns.com\/?p=262"},"modified":"2015-02-15T20:47:16","modified_gmt":"2015-02-15T12:47:16","slug":"php-pan-duan-zi-fu-chuan-de-bao-han","status":"publish","type":"post","link":"https:\/\/www.siediyer.cn\/?p=262","title":{"rendered":"PHP\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u5305\u542b"},"content":{"rendered":"
\n

PHP\u8bed\u8a00<\/a>\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u5d4c\u5165\u5f0fHTML\u811a\u672c\u8bed\u8a00\uff0c\u5b83\u7684\u6613\u7528\u6027\u8ba9\u8bb8\u591a\u7a0b\u5e8f\u5458\u9009\u62e9\u4f7f\u7528\u3002PHP\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u5305\u542b,\u53ef\u4ee5\u4f7f\u7528PHP\u7684\u5185\u7f6e\u51fd\u6570strstr,strpos,stristr\u76f4\u63a5\u8fdb\u884c\u5224\u65ad.\u4e5f\u53ef\u4ee5\u901a\u8fc7explode\u51fd\u6570\u7684\u4f5c\u7528\u5199\u4e00\u4e2a\u5224\u65ad\u51fd\u6570\u3002<\/p>\n

1. strstr: \u8fd4\u56de\u4e00\u4e2a\u4ece\u88ab\u5224\u65ad\u5b57\u7b26\u5f00\u59cb\u5230\u7ed3\u675f\u7684\u5b57\u7b26\u4e32,\u5982\u679c\u6ca1\u6709\u8fd4\u56de\u503c,\u5219\u4e0d\u5305\u542b<\/p>\n

\u4ee3\u7801\u5982\u4e0b:<\/p>\n

<\u00a0?php<\/p>\n

\/*\u5982\u624b\u518c\u4e0a\u7684\u4e3e\u4f8b*\/<\/p>\n

$email\u00a0=\u00a0‘user@example.com’;<\/p>\n

$domain\u00a0=\u00a0strstr($email,\u00a0‘@’);<\/p>\n

echo\u00a0$domain;
\n\/\/\u00a0prints\u00a0@example.com<\/p>\n

?><\/p>\n

2. stristr: \u5b83\u548cstrstr\u7684\u4f7f\u7528\u65b9\u6cd5\u5b8c\u5168\u4e00\u6837.\u552f\u4e00\u7684\u533a\u522b\u662fstristr\u4e0d\u533a\u5206\u5927\u5c0f\u5199.<\/p>\n

3. strpos: \u8fd4\u56deboolean\u503c.FALSE\u548cTRUE\u4e0d\u7528\u591a\u8bf4.\u7528 \u201c===\u201d\u8fdb\u884c\u5224\u65ad.strpos\u5728\u6267\u884c\u901f\u5ea6\u4e0a\u90fd\u6bd4\u4ee5\u4e0a\u4e24\u4e2a\u51fd\u6570\u5feb,\u53e6\u5916strpos\u6709\u4e00\u4e2a\u53c2\u6570\u6307\u5b9a\u5224\u65ad\u7684\u4f4d\u7f6e,\u4f46\u662f\u9ed8\u8ba4\u4e3a\u7a7a.\u610f\u601d\u662f\u5224\u65ad\u6574\u4e2a\u5b57\u7b26\u4e32.\u7f3a\u70b9\u662f\u5bf9\u4e2d\u6587\u7684\u652f\u6301\u4e0d\u597d.<\/p>\n

PHP\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u5305\u542b\u4ee3\u7801\u5982\u4e0b:<\/p>\n

$str=\u00a0‘abc’;<\/p>\n

$needle=\u00a0‘a’;<\/p>\n

$pos\u00a0=\u00a0strpos($str,\u00a0$needle);<\/p>\n

4. \u7528explode\u8fdb\u884c\u5224\u65ad<\/p>\n

PHP\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u5305\u542b\u4ee3\u7801\u5982\u4e0b:<\/p>\n

function\u00a0checkstr($str){<\/p>\n

$needle\u00a0=\u00a0“a”;\/\/\u5224\u65ad\u662f\u5426\u5305\u542ba\u8fd9\u4e2a\u5b57\u7b26<\/p>\n

$tmparray\u00a0=\u00a0explode($needle,$str);<\/p>\n

if(count($tmparray)>1){<\/p>\n

return\u00a0true;<\/p>\n

}\u00a0else{<\/p>\n

return\u00a0false;<\/p>\n

}<\/p>\n

}<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

PHP\u8bed\u8a00\u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u7684\u5d4c\u5165\u5f0fHTML\u811a\u672c\u8bed\u8a00\uff0c\u5b83\u7684\u6613\u7528\u6027\u8ba9\u8bb8\u591a\u7a0b\u5e8f\u5458\u9009\u62e9\u4f7f\u7528\u3002PHP\u5224\u65ad\u5b57\u7b26\u4e32\u7684\u5305\u542b,\u53ef\u4ee5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-262","post","type-post","status-publish","format-standard","hentry","category-php"],"_links":{"self":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/262","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=262"}],"version-history":[{"count":1,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/262\/revisions"}],"predecessor-version":[{"id":432,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=\/wp\/v2\/posts\/262\/revisions\/432"}],"wp:attachment":[{"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=262"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=262"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.siediyer.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=262"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}