Online PHP editor | output for chmi4

@ 2012-09-10T10:33:26Z

<?php
/**
 * BASE62 解析类，专门针对长mid与62进制互转，不适用其他操作
 * 
 * @copyright	(c) 2009, 新浪网MiniBlog  All rights reserved.
 * @author		王兆源 <[email protected]> 朱建鑫 李如其
 * @version		1.0 - 2009-08-05
 * @package		Tools
 */
class Base62Parse
{

	private static $string = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
	private static $encodeBlockSize = 7;
	private static $decodeBlockSize = 4;

	/**
	 * 将mid转换成62进制字符串
	 *
	 * @param	string	$mid
	 * @return	string
	 */
	function encode($mid)
	{
		$str = "";
		$midlen = strlen($mid);
		$segments = ceil($midlen / self::$encodeBlockSize);
		$start = $midlen;
		for ( $i = 1; $i < $segments; $i+=1 )
		{
			$start -= self::$encodeBlockSize;
			$seg = substr($mid, $start, self::$encodeBlockSize);
			$seg = self::encodeSegment($seg);
			$str = str_pad($seg, self::$decodeBlockSize, '0', STR_PAD_LEFT) . $str;
		}
		$str = self::encodeSegment(substr($mid, 0, $start)) . $str;
		return $str;
	}

	/**
	 * 将62进制字符串转成10进制mid
	 *
	 * @param	string	$str
	 * @return	string
	 */
	function decode($str, $compat = false, $for_mid = true)
	{
		$mid = "";
		$strlen = strlen($str);
		$segments = ceil($strlen / self::$decodeBlockSize);
		$start = $strlen;
		for ( $i = 1; $i < $segments; $i+=1 )
		{
			$start -= self::$decodeBlockSize;
			$seg = substr($str, $start, self::$decodeBlockSize);
			$seg = self::decodeSegment($seg);
			$mid = str_pad($seg, self::$encodeBlockSize, '0', STR_PAD_LEFT) . $mid;
		}
		$mid = self::decodeSegment(substr($str, 0, $start)) . $mid;
		//判断v3版本mid
		if ( $for_mid && $mid > 4294967295 ) {
			if ( PHP_INT_SIZE < 8 ) {
				$cmd = "expr $mid / 4294967296";
				$time = `$cmd`;
			} else {
				$mid += 0;
				$time = $mid >> 32; //64位中前32位是时间，精确到秒级
			}
			if ( $time > 1230739200 && $time < 1577808000 ) return $mid;
		}
		//end
		if ( $compat && !in_array(substr($mid, 0, 3), array('109', '110', '201', '211', '221', '231', '241')) ) {
			$mid = self::decodeSegment(substr($str, 0, 4)) . self::decodeSegment(substr($str, 4));
		}
		if ( $for_mid ) {
			if ( substr($mid, 0, 1) == '1' && substr($mid, 7, 1) == '0' ) {
				$mid = substr($mid, 0, 7) . substr($mid, 8);
			}
		}
		return $mid;
	}

	/**
	 * 将10进制转换成62进制
	 *
	 * @param	string	$str	10进制字符串
	 * @return	string
	 */
	function encodeSegment($str)
	{
		$out = '';
		while ( $str > 0 ) {
			$idx = $str % 62;
			$out = substr(self::$string, $idx, 1) . $out;
			$str = floor($str / 62);
		}
		return $out;
	}

	/**
	 * 将62进制转换成10进制
	 *
	 * @param	string	$str	62进制字符串
	 * @return	string
	 */
	function decodeSegment($str)
	{
		$out = 0;
		$base = 1;
		for ( $t = strlen($str) - 1; $t >= 0; $t-=1 )
		{
			$out = $out + $base * strpos(self::$string, substr($str, $t, 1));
			$base *= 62;
		}
		return $out . "";
	}

}
var_dump(Base62Parse::decode('yuxZe7FtJ'));

Output for 8.5.0: Warning: Failed loading Zend extension 'opcache.so' (tried: /usr/lib/php/8.5.0/modules/opcache.so (/usr/lib/php/8.5.0/modules/opcache.so: cannot open shared object file: No such file or directory), /usr/lib/php/8.5.0/modules/opcache.so.so (/usr/lib/php/8.5.0/modules/opcache.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Deprecated: The backtick (`) operator is deprecated, use shell_exec() instead in /in/chmi4 on line 64 Fatal error: Uncaught Error: Non-static method Base62Parse::decode() cannot be called statically in /in/chmi4:119 Stack trace: #0 {main} thrown in /in/chmi4 on line 119
Process exited with code 255.
Output for 8.4.15: /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.38' not found (required by /bin/php-8.4.15) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.36' not found (required by /usr/lib/libm.so.6) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_ABI_DT_RELR' not found (required by /usr/lib/libm.so.6) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.34' not found (required by /usr/lib/libm.so.6) /bin/php-8.4.15: /usr/lib/libc.so.6: version `GLIBC_2.35' not found (required by /usr/lib/libm.so.6)
Process exited with code 1.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.28, 8.4.1 - 8.4.14: Fatal error: Uncaught Error: Non-static method Base62Parse::decode() cannot be called statically in /in/chmi4:119 Stack trace: #0 {main} thrown in /in/chmi4 on line 119
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.25, 7.4.27 - 7.4.33: Deprecated: Non-static method Base62Parse::decode() should not be called statically in /in/chmi4 on line 119 Deprecated: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 56 Deprecated: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 56 Deprecated: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 59 int(3472804881827743)
Output for 7.3.32 - 7.3.33, 7.4.26: int(3472804881827743)
Output for 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28: Strict Standards: Non-static method Base62Parse::decode() should not be called statically in /in/chmi4 on line 119 Strict Standards: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 56 Strict Standards: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 56 Strict Standards: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 59 int(3472804881827743)
Output for 5.0.0 - 5.0.4: Strict Standards: Non-static method Base62Parse::decode() should not be called statically in /in/chmi4 on line 119 Strict Standards: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 56 Strict Standards: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 56 Strict Standards: Non-static method Base62Parse::decodeSegment() should not be called statically in /in/chmi4 on line 59 Notice: Use of undefined constant PHP_INT_SIZE - assumed 'PHP_INT_SIZE' in /in/chmi4 on line 62 Warning: shell_exec(): Unable to execute 'expr 3472804881827743 / 4294967296' in /in/chmi4 on line 64 string(16) "3472804881827743"
Output for 4.4.2 - 4.4.9: Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/chmi4 on line 13
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1: Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/chmi4 on line 13
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/chmi4 on line 13
Process exited with code 255.

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