init repo from toolkit str-utils,arr-utils,obj-utils

Author: inhere

.gitignore

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+.idea/
+.phpintel/
+!README.md
+!.gitkeep
+composer.lock
+*.swp
+*.log
+*.pid
+*.patch
+.DS_Store

.php_cs

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+<?php
+
+$header = <<<'EOF'
+This file is part of toolkit/stdlib.
+
+@author   https://github.com/inhere
+@link     https://github.com/php-toolkit/stdlib
+@license  MIT
+EOF;
+
+return PhpCsFixer\Config::create()
+    ->setRiskyAllowed(true)
+    ->setRules([
+        '@PSR2' => true,
+        'array_syntax' => [
+            'syntax' => 'short'
+        ],
+        'class_attributes_separation' => true,
+        'declare_strict_types' => true,
+        'global_namespace_import' => true,
+        'header_comment' => [
+            'comment_type' => 'PHPDoc',
+            'header'    => $header,
+            'separate'  => 'bottom'
+        ],
+        'no_unused_imports' => true,
+        'single_quote' => true,
+        'standardize_not_equals' => true,
+    ])
+    ->setFinder(
+        PhpCsFixer\Finder::create()
+            // ->exclude('test')
+            ->exclude('runtime')
+            ->exclude('vendor')
+            ->in(__DIR__)
+    )
+    ->setUsingCache(false);

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2016 inhere
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

composer.json

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+{
+  "name": "toolkit/stdlib",
+  "type": "library",
+  "description": "some stdlib tool library of the php",
+  "keywords": [
+    "library",
+    "tool",
+    "array",
+    "object",
+    "string",
+    "php"
+  ],
+  "homepage": "https://github.com/php-toolkit/stdlib",
+  "license": "MIT",
+  "authors": [
+    {
+      "name": "inhere",
+      "email": "in.798@qq.com",
+      "homepage": "http://www.yzone.net/"
+    }
+  ],
+  "require": {
+    "php": ">7.1.0",
+    "ext-mbstring": "*"
+  },
+  "autoload": {
+    "psr-4": {
+      "Toolkit\\Stdlib\\": "src/"
+    }
+  },
+  "suggest": {
+    "inhere/php-validate": "Very lightweight data validate tool"
+  }
+}

src/Arr.php

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+<?php declare(strict_types=1);
+/**
+ * This file is part of toolkit/stdlib.
+ *
+ * @author   https://github.com/inhere
+ * @link     https://github.com/php-toolkit/stdlib
+ * @license  MIT
+ */
+
+namespace Toolkit\Stdlib;
+
+use Toolkit\Stdlib\Arr\ArrayHelper;
+
+/**
+ * Class Arr
+ *  alias of the ArrayHelper
+ *
+ * @package Toolkit\Stdlib
+ */
+class Arr extends ArrayHelper
+{
+}

src/Arr/ArrBuffer.php

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+<?php declare(strict_types=1);
+/**
+ * This file is part of toolkit/stdlib.
+ *
+ * @author   https://github.com/inhere
+ * @link     https://github.com/php-toolkit/stdlib
+ * @license  MIT
+ */
+
+namespace Toolkit\Stdlib\Arr;
+
+/**
+ * Class ArrBuffer
+ *
+ * @package Toolkit\Stdlib\Arr
+ */
+final class ArrBuffer
+{
+    /**
+     * @var string[]
+     */
+    private $body = [];
+
+    /**
+     * @var string
+     */
+    private $delimiter = ''; // '/' ':'
+
+    /**
+     * @param string $first
+     *
+     * @return ArrBuffer
+     */
+    public static function new(string $first = ''): ArrBuffer
+    {
+        return new self($first);
+    }
+
+    /**
+     * constructor.
+     *
+     * @param string $content
+     */
+    public function __construct(string $content = '')
+    {
+        if ($content) {
+            $this->body[] = $content;
+        }
+    }
+
+    /**
+     * @param string $content
+     */
+    public function write(string $content): void
+    {
+        $this->body[] = $content;
+    }
+
+    /**
+     * @param string $content
+     */
+    public function append(string $content): void
+    {
+        $this->write($content);
+    }
+
+    /**
+     * @param string $content
+     */
+    public function prepend(string $content): void
+    {
+        array_unshift($this->body, $content);
+    }
+
+    /**
+     * clear
+     */
+    public function clear(): void
+    {
+        $this->body = [];
+    }
+
+    /**
+     * @return string[]
+     */
+    public function getBody(): array
+    {
+        return $this->body;
+    }
+
+    /**
+     * @param string[] $body
+     */
+    public function setBody(array $body): void
+    {
+        $this->body = $body;
+    }
+
+    /**
+     * @return string
+     */
+    public function toString(): string
+    {
+        return implode($this->delimiter, $this->body);
+    }
+
+    /**
+     * @return string
+     */
+    public function __toString()
+    {
+        return $this->toString();
+    }
+
+    /**
+     * @return string
+     */
+    public function getDelimiter(): string
+    {
+        return $this->delimiter;
+    }
+
+    /**
+     * @param string $delimiter
+     */
+    public function setDelimiter(string $delimiter): void
+    {
+        $this->delimiter = $delimiter;
+    }
+}