TAILIEUCHUNG - PHP Tutorial chương 2 p2

Function List Probably the biggest problem with PHP is its inconsistency. Some function names use underscores, some don't. Some are of the form "verb object" and some are "object verb". Some use "2" instead of "to". The side sections of the cheat sheet list many of the most commonly used functions in PHP and are there to provide a quick reference to check function names. | PHP Cheat Sheet php Brought To You By Arrays array_pop array_push array .reverse array .walk count Date and Time date mktime strtotime time Filesystem clearstatcache copy fclose fgets file filemtime filesize fopen fread write ls_dlr readfile Headers header set cookie Mail mail Numbers ceil floor number format round Miscellaneous define eval exit Network fsockopen PHP Options I t phpinfo Execution exec REGULAR EXPRESSION SYNTAX DATE FORMATTING A Start of string Y 4 digit year 2005 i End of string y 2 digit year 05 . Any single character F Long month January a b a or b M Short month Jan . Group section m Month leading zeros 01 to 12 abc Item in range a or b or c n Month 1 to 12 Aabc Not in range not a or b or c D Short day name Mori s White space 1 Long day name Monday a Zero or one of a d Day leading zeros 01 to 31 a Zero or more of a j Day 1 to 31 a One or more of a a 3 Exactly 3 of a h 12 Hour leading zeros 01 to 12 a 3 3 or more of a g 12 Hour 1 to 12 a 3 6 Between 3 and 6 of a H 24 Hour leading zeros 00 to 23 Escape character G 24 Hour 0 to 23 i Minutes leading zeros 00 to 59 punct Any punctuation symbol s Seconds leading zeros 00 to 59 space Any space character blank Space or tab w Day of week 1 0 to 6 z Day of year 0 to 365 PCRE MODIFIERS W Week of year2 1 to 53 t Days in month 28 to 31 i Case-insensitive s Period matches newline a am or pm m and match lines A AM or PM U Ungreedy matching b swatch Internet Time 000 to 999 e Evaluate replacement S Ordinal Suffix st nd td th X Pattern over several lines T Timezone of machine GMT Z Timezone offset seconds FUNCTION ARGUMENT ORDERS 0 Difference to GMT hours 0200 I Daylight savings 1 or 0 array element L Leap year 1 or 0 needle haystack expioue t separator siring u Seconds since Epoch split pattern string c ISO 8601 PHP 5 pattern string r RFC 2822 ereg i pattern string strpos

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