\u5728PHP\u8bed\u8a00\u4e2d\uff0c\u5b58\u5728\u7740\u591a\u79cd\u6253\u5370\u8f93\u51fa\u51fd\u6570\uff0c\u4e0b\u9762\u6211\u4eec\u5c06\u4f1a\u4e3a\u5927\u5bb6\u5e26\u6765PHP\u6253\u5370\u51fd\u6570\u7684\u6240\u6709\u79cd\u7c7b\uff0c\u8ba9\u5927\u5bb6\u5bf9\u6b64\u6709\u4e00\u4e2a\u57fa\u672c\u7684\u8ba4\u8bc6\uff0c\u5e76\u5e0c\u671b\u8bfb\u8005\u670b\u53cb\u4eec\u80fd\u591f\u5c06\u4ed6\u4eec\u8fdb\u884c\u6536\u85cf\uff0c\u4ee5\u65b9\u4fbf\u5c06\u6765\u4f7f\u7528\u67e5\u8be2\u3002<\/p>\n

PHP mb_strwidth\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\u7684\u95ee\u9898\u89e3\u6790
\n PHP\u5b57\u7b26\u4e32\u64cd\u4f5c\u7684\u8be6\u7ec6\u6307\u5357
\n PHP\u6269\u5c55\u5e93\u7684\u8be6\u7ec6\u6e05\u5355\u6982\u89c8
\n PHP\u7f51\u7edc\u51fd\u6570fsockopen\u5982\u4f55\u5b9e\u73b0Socket\u94fe\u63a5
\n PHP\u52a8\u6001\u7f51\u7ad9\u5f00\u53d1\u7684\u6280\u5de7\u5206\u4eab<\/p>\n

PHP\u6253\u5370\u51fd\u65701 echo()<\/p>\n

\u53ef\u4ee5\u540c\u65f6\u8f93\u51fa\u591a\u4e2a\u5b57\u7b26\u4e32,\u53ef\u4ee5\u591a\u4e2a\u53c2\u6570,\u5e76\u4e0d\u9700\u8981\u5706\u62ec\u53f7,\u65e0\u8fd4\u56de\u503c\u3002<\/p>\n

PHP\u6253\u5370\u51fd\u65702 print()<\/p>\n

\u53ea\u53ef\u4ee5\u540c\u65f6\u8f93\u51fa\u4e00\u4e2a\u5b57\u7b26\u4e32\uff0c\u4e00\u4e2a\u53c2\u6570,\u9700\u8981\u5706\u62ec\u53f7,\u6709\u8fd4\u56de\u503c,\u5f53\u5176\u6267\u884c\u5931\u8d25\u65f6\u8fd4flase .print \u7684\u7528\u6cd5\u548cC\u8bed\u8a00\u5f88\u50cf\uff0c\u6240\u4ee5\u4f1a\u5bf9\u8f93\u51fa\u5185\u5bb9\u91cc\u7684%\u505a\u7279\u6b8a\u89e3\u91ca\u3002<\/p>\n

PHP\u6253\u5370\u51fd\u65703 die();<\/p>\n

\u6709\u4e24\u4e2a\u529f\u80fd\uff1a\u5148\u8f93\u51fa\u5185\u5bb9\uff0c\u7136\u540e\u9000\u51fa\u7a0b\u5e8f\u3002\uff08\u5e38\u7528\u5728\u94fe\u63a5\u670d\u52a1\u5668\uff0c\u6570\u636e\u5e93\uff09<\/p>\n

mysql_connect(“locahost”,”root”,”root”) or die(“\u94fe\u63a5\u670d\u52a1\u5668\u5931\u8d25\uff01”);<\/p>\n

PHP\u6253\u5370\u51fd\u65704 printf();<\/p>\n

printf(“\u53c2\u65701”,\u53c2\u65702)\uff1a\u53c2\u65701=\u6309\u4ec0\u4e48\u683c\u5f0f\u8f93\u51fa\uff1b\u53c2\u65702=\u8f93\u51fa\u7684\u53d8\u91cf\u3002($s:\u6309\u5b57\u7b26\u4e32;$d:\u6309\u6574\u578b;$b:\u6309\u4e8c\u8fdb\u5236\uff1b$x:\u630916\u8fdb\u5236\uff1b$o:\u6309\u516b\u8fdb\u5236; $f:\u6309\u6d6e\u70b9\u578b)<\/p>\n

< ?php \n $num=100.001; \n printf(\"%d\",$num); \/\/100 \n printf(\"%s\",$num); \/\/100.001 \n printf(\"%s---%d---%b---%x---%o---%f\",$num,$num,$num,$num,$num,$num) \n \/\/100.001---100---1100100---64---144---1001.00100 \n printf(\"%.2f\",$num); \/\/100.00 (\u5c0f\u6570\u70b9\u4fdd\u75592\u4f4d) \n printf(\"%.1f\",$num); \/\/100.0 (\u5c0f\u6570\u70b9\u4fdd\u75591\u4f4d) \n printf(\"%`#10s\",$num); \/\/###100.001 \n printf(\"%`@10s\",$num); \/\/@@@100.001 \n printf(\"%`_10s\",$num); \/\/___100.001 \n printf(\"%`#-10s\",$num); \/\/100.001### \n printf(\"%`@-10s\",$num); \/\/100.001@@@ \n printf(\"%`_-10s\",$num); \/\/100.001___ \n printf(\"%`#20s\",$num); \/\/#############100.001 \n ?> <\/p>\n

PHP\u6253\u5370\u51fd\u65705 sprintf();<\/p>\n

\u6b64\u5e76\u4e0d\u80fd\u76f4\u63a5\u8f93\u51fa,\u5148\u8d4b\u7ed9\u4e00\u4e2a\u53d8\u91cf\uff0c\u7136\u540e\u518d\u8f93\u51fa\u53d8\u91cf\u3002<\/p>\n

< ?php \n $num=100.001; \n $a=sprintf(\"%d\",$num); \n echo $a; \/\/100 \n ?> <\/p>\n

PHP\u6253\u5370\u51fd\u65706 print_r();<\/p>\n

\u529f\u80fd\uff1a\u53ea\u7528\u4e8e\u8f93\u51fa\u6570\u7ec4\u3002<\/p>\n

PHP\u6253\u5370\u51fd\u65707 var_dump();<\/p>\n

\u529f\u80fd: \u8f93\u51fa\u53d8\u91cf\u7684\u5185\u5bb9\uff0c\u7c7b\u578b\u6216\u5b57\u7b26\u4e32\u7684\u5185\u5bb9\uff0c\u7c7b\u578b\uff0c\u957f\u5ea6\u3002\u5e38\u7528\u6765\u8c03\u8bd5\u3002<\/p>\n

< ?php \n $a=100; \n var_dump($a); \/\/int(3) 100 \n ?> <\/p>\n","protected":false},"excerpt":{"rendered":"

\u5728PHP\u8bed\u8a00\u4e2d\uff0c\u5b58\u5728\u7740\u591a\u79cd\u6253\u5370\u8f93\u51fa\u51fd\u6570\uff0c\u4e0b\u9762\u6211\u4eec\u5c06\u4f1a\u4e3a\u5927\u5bb6\u5e26\u6765PHP...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-174","post","type-post","status-publish","format-standard","hentry","category-phpjsshell"],"_links":{"self":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts\/174","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=174"}],"version-history":[{"count":1,"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions"}],"predecessor-version":[{"id":175,"href":"https:\/\/www.01xj.net\/index.php?rest_route=\/wp\/v2\/posts\/174\/revisions\/175"}],"wp:attachment":[{"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=174"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=174"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.01xj.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=174"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}