Предлагаю здесь собирать всякие полезные функции.
Есть много функций которые писал и после ненадобности просто удалял или терял.
| span style="color: #0000BB"><?php/** * @autor TLENS * @return int * @description "вычитания числа в степень"**/function power ($b, $n, $t = 1) { if($n > 0) return power($b, --$n, $t * $b); return $t;}/** * @autor TLENS * @return int * @description "перевод с двоичного исчисления в десятичное"**/function bin_to_dec($a) { $r = 0; $a = (string)$a; $c = strlen($a) - 1; for ($i = 0; $c >= 0; $c --) $r += (($a[$i++]) ? 1 : 0) * 2 << ($i - 1); return $r;}/** * @autor TLENS * @return string * @description "перевод с десятичного исчисления в двоичное"**/function dec_to_bin($int) { $r = ''; do { $r = $r . $int % 2; } while (($int >>= 1) >= 1); return $r;}$i = 101;echo $i . ' ' . bin_to_dec($i) . '<br />'; // 101 5 |
| <xsl:template name="split"> |
| <xsl:param name="value"/> |
| <xsl:param name="index" select="1"/> |
| <xsl:param name="maxLen" select="512"/> |
| <xsl:param name="maxNodes" select="5"/> |
| <xsl:if test="string-length($value) > 0 and $index <= $maxNodes"> |
| <E4440> |
| <xsl:value-of select="substring($value, 1, $maxLen)"/> |
| </E4440> |
| <xsl:call-template name="split"> |
| <xsl:with-param name="value" select="substring($value, $maxLen)"/> |
| <xsl:with-param name="index" select="$index + 1"/> |
| </xsl:call-template> |
| </xsl:if> |
| </xsl:template> |
| span style="color: #0000BB"><?php/** * @autor TLENS * @return int * @description "вычитания числа в степень"**/function power ($b, $n, $t = 1) { if($n > 0) return power($b, --$n, $t * $b); return $t;}?> |
| span style="color: #0000BB"><?phpfunction power ($b, $n) { return $b << ($n - 1);} |
| span style="color: #0000BB"><?php//Функция "Удаления каталога с файлами" function delete_dir($dir){ if($scandir = scandir($dir = $dir . '/')){$x = 0; foreach($scandir as $value){ if($x > 1){$value = $dir . $value;if(is_dir($value)) delete_dir($value);else unlink($value); }++$x; } }return rmdir($dir); } |
| span style="color: #0000BB"><?php/*Функция SpiderDetect - принимает $_SERVER['HTTP_USER_AGENT'] и возвращает имя кравлера поисковой системы или false.*//*База ботов - http://www.user-agents.org/Кому охото могут всех записать, но это уже будет наверно перебор :)*/ function SpiderDetect($USER_AGENT){$engines = array(array('Aport', 'Aport robot'),array('Google', 'Google'),array('msnbot', 'MSN'),array('Rambler', 'Rambler'),array('Yahoo', 'Yahoo'),array('AbachoBOT', 'AbachoBOT'),array('accoona', 'Accoona'),array('AcoiRobot', 'AcoiRobot'),array('ASPSeek', 'ASPSeek'),array('CrocCrawler', 'CrocCrawler'),array('Dumbot', 'Dumbot'),array('FAST-WebCrawler', 'FAST-WebCrawler'),array('GeonaBot', 'GeonaBot'),array('Gigabot', 'Gigabot'),array('Lycos', 'Lycos spider'),array('MSRBOT', 'MSRBOT'),array('Scooter', 'Altavista robot'),array('AltaVista', 'Altavista robot'),array('WebAlta', 'WebAlta'),array('IDBot', 'ID-Search Bot'),array('eStyle', 'eStyle Bot'),array('Mail.Ru', 'Mail.Ru Bot'),array('Scrubby', 'Scrubby robot'),array('Yandex', 'Yandex'),array('YaDirectBot', 'Yandex Direct')); foreach ($engines as $engine){if(strpos($USER_AGENT, $engine[0]) !== false) return($engine[1]); }return (false); }?> |
| span style="color: #0000BB"><?phpfunction power ($b, $n) { return $b << ($n - 1);} |
| span style="color: #0000BB"><?phpfunction power($b, $n) { return $b << ($n - 1); }echo power(5, 3);//20//а должно 125 = 5*5*5?> |
| span style="color: #0000BB"><?phpecho '<pre>';echo 2 ^ 1; echo PHP_EOL; //3 bitsecho 25 ^ 5; echo PHP_EOL; //28 bitsecho 125 ^ 5; echo PHP_EOL; //120 bitsecho 125 ^ 25; echo PHP_EOL; //100 bitsecho '</pre>';/*The above example will output: --------- --------- -- --------- result value op test --------- --------- -- --------- Bitwise AND( 0 = 0000) = ( 0 = 0000) & ( 5 = 0101)( 1 = 0001) = ( 1 = 0001) & ( 5 = 0101)( 0 = 0000) = ( 2 = 0010) & ( 5 = 0101)( 4 = 0100) = ( 4 = 0100) & ( 5 = 0101)( 0 = 0000) = ( 8 = 1000) & ( 5 = 0101) Bitwise Inclusive OR( 5 = 0101) = ( 0 = 0000) | ( 5 = 0101)( 5 = 0101) = ( 1 = 0001) | ( 5 = 0101)( 7 = 0111) = ( 2 = 0010) | ( 5 = 0101)( 5 = 0101) = ( 4 = 0100) | ( 5 = 0101)(13 = 1101) = ( 8 = 1000) | ( 5 = 0101) Bitwise Exclusive OR (XOR)( 5 = 0101) = ( 0 = 0000) ^ ( 5 = 0101)( 4 = 0100) = ( 1 = 0001) ^ ( 5 = 0101)( 7 = 0111) = ( 2 = 0010) ^ ( 5 = 0101)( 1 = 0001) = ( 4 = 0100) ^ ( 5 = 0101)(13 = 1101) = ( 8 = 1000) ^ ( 5 = 0101)*/?> |
| //C |
| #include <stdio.h> |
| #define EOF '\n' |
| #define MAXLENGTH 1000 |
| void expand(int a[], int b[]); |
| int main () |
| { |
| int a[MAXLENGTH], b[MAXLENGTH], c, i; |
| for (i = 0; i < MAXLENGTH; i++) |
| a[i] = b[i] = '\0'; |
| while (1) |
| { |
| printf("In: "); |
| for (i = 0; (c = getchar()) != EOF; i ++) |
| if (i < MAXLENGTH) a[i] = c; |
| if (++i < MAXLENGTH) a[i] = '\0'; |
| expand(a, b); |
| for (i = 0; i < MAXLENGTH && b[i] != '\0'; i++) |
| putchar(b[i]); |
| putchar('\n'); |
| for (i = 0; i < MAXLENGTH; i++) |
| a[i] = b[i] = '\0'; |
| } |
| getchar(); |
| } |
| void expand (int a[], int b[]) |
| { |
| int i, j; |
| for (i = j = 0; i < MAXLENGTH && a[i] != EOF && a[i] != '\0'; i ++, j) |
| { |
| if (b[j] != '\0' || j > MAXLENGTH) break; |
| if (a[i] == '-') |
| { |
| if (((a[i - 1] >= 'a' && a[i - 1] <= 'z') && (a[i + 1] >= 'a' && a[i + 1] <= 'z')) || ((a[i - 1] >= 'A' && a[i - 1] <= 'Z') && (a[i + 1] >= 'A' && a[i + 1] <= 'Z'))) |
| { |
| if (a[i+1] > a[i-1]) |
| for (int l = a[i-1] + 1; l < a[i+1]; l++) |
| { |
| if (b[j] != '\0' || j > MAXLENGTH) break; |
| b[j++] = l; |
| } |
| else b[j++] = '-'; |
| } |
| else if ((a[i - 1] >= 'a' && a[i - 1] <= 'z') && (a[i + 1] >= 'A' && a[i + 1] <= 'Z')) |
| { |
| for (int l = a[i-1] + 1; l != a[i+1]; l++) |
| { |
| if (b[j] != '\0' || j > MAXLENGTH) break; |
| b[j++] = l; |
| if (l == 'z') |
| l = 'A' - 1; |
| } |
| } |
| else if (a[i-1] >= '0' && a[i+1] <='9') |
| { |
| if (a[i+1] > a[i-1]) |
| for (int l = a[i-1] + 1; l < a[i+1]; l++) |
| { |
| if (b[j] != '\0' || j > MAXLENGTH) break; |
| b[j++] = l; |
| } |
| else b[j++] = '-'; |
| } |
| else |
| b[j++] = '-'; |
| } |
| else |
| b[j++] = a[i]; |
| } |
| b[j++] = '\0'; |
| return; |
| } |
