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Server : nginx/1.20.1 System : Linux iZ2ze9ojcl78uluczwag69Z 4.18.0-240.22.1.el8_3.x86_64 #1 SMP Thu Apr 8 19:01:30 UTC 2021 x86_64 User : www ( 1000) PHP Version : 7.3.28 Disable Function : passthru,exec,system,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv Directory : /www/wwwroot/0531yanglao.com/vendor/topthink/think-helper/ |
# thinkphp6 常用的一些扩展类库 基于PHP7.1+ [](https://github.com/larvatecn/think-helper/actions/workflows/php.yml) > 以下类库都在`\\think\\helper`命名空间下 ## Str > 字符串操作 ``` // 检查字符串中是否包含某些字符串 Str::contains($haystack, $needles) // 检查字符串是否以某些字符串结尾 Str::endsWith($haystack, $needles) // 获取指定长度的随机字母数字组合的字符串 Str::random($length = 16) // 字符串转小写 Str::lower($value) // 字符串转大写 Str::upper($value) // 获取字符串的长度 Str::length($value) // 截取字符串 Str::substr($string, $start, $length = null) ```