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PHP/API

Last-modified: 2012-02-20 () 04:16:06 (2039d)
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PHP

̹

Υå

is_string($var)stringĴ٤ޤ
is_int($var)integerĴ٤ޤ
is_float($var)floatĴ٤ޤ
is_bool($var)booleanĴ٤ޤ
is_array($var)Ĵ٤ޤ
is_resource($var)꥽Ĵ٤ޤ
is_object($var)֥ȤĴ٤ޤ
is_scalar($var)ͤʸbooleanʳĴ٤ޤ
is_numeric($var)ͤʸ󤫡ʳĴ٤ޤ
is_null($var)ѿͤNULLĴ٤ޤ¸ߤʤѿФƻȤTRUE֤ޤ⤽ȤʤǤʷٹ𤬽Фޤˡ
isset($var)ѿ¸ߤNULLʳͤꤵƤ뤫Ĵ٤ޤGETPOSTͤäƤ뤫Ĵ٤Ȥ˻Ѥޤ

Ѵ

intval("123")10ʿʸ
intval("1110", 2)ʿʸ
intval("777", 8)ʿʸ
intval("fff0", 16)16ʿʸ

ʸͤȤưȤƬϤޤͤͤȤʤޤѻϤޤȤϣȤʤޤ

echo 2+'30degree';  32

print "Hello!";
ʸϤޤ칽¤ʤΤdz̤ǤʤƤ⵭ҤǤޤ
echo "Hello!";
ʸϤޤ칽¤ʤΤdz̤ǤʤƤ⵭ҤǤޤ
print_r();
ƤϤޤ
var_dump();
ηƤϤޤ
var_export();
PHPƤϤޤ

ʸ

chr()
ɤʸѴޤ
ord(ʸ)
ƬʸΥɤ֤ޤ

ʸ

$str1 . $str2
ʸϢԤޤ
strlen($str)
ʸΥХȿ֤ޤ
mb_strlen($str(, "SJIS"))
ʸʸ֤ޤ
strcmp($str1, $str2)
Ӥ$str1Ȥ֤ͤޤ
strcmp($str1, $str2, ӥХȥ)
ꤷХȿӤ$str1Ȥ֤ͤޤ
strcasecmp($str1, $str2)
ʸʸ̤˼Ӥ$str1Ȥ֤ͤޤ
str_repeat($str, ֤)
ʸ¤٤ʸ֤ޤ
str_pad($str, Хȿ, "=", STR_PAD_BOTH)
ХȿĹˤʤޤǡξü᤿ʸ֤ޤSTR_PAD_LEFT, STR_PAD_RIGHTǤޤ

Ф

substr($str, ϥХȰ, ФХȿ)
ꤷХȰ֤ĹʸФޤϥХȿޥʥΤȤХܤ鳫ϤޤФХȿޥʥΤȤƤΥХܤ꺸¦ޤǤФޤ
substr($str, ϥХȰ)
ꤷХȰ֤ޤǤʸФޤ
mb_substr($str, ʸ, Фʸ)
ʸ󥳡ǥ󥰤ˡꤷʸ֤ĹʸФޤ
mb_substr($str, ʸ, Фʸ, "SJIS")
ꤷ󥳡ǥ󥰤ˡꤷʸ֤ĹʸФޤ
strstr($str, $strSearchWord)
ǽ˸Ĥäʸ󤫤ޤǤʸФޤĤʤFALSE֤ޤ
stristr($str, $strSearchWord)
ʸʸ̤˺ǽ˸Ĥäʸ󤫤ޤǤʸФޤĤʤFALSE֤ޤ
strchr($str, ʸ)
Ǹ˸ĤäʸޤǤʸʸޤ֤ޤsubstr(strchr($str, ʸ), 1)ȤСޤ᤺˼Ǥޤ
list($strNumber, $strExt) = sscanf("img15.gif", "img%d.%s");
ʸ󤫤եޥåȤ˽äưФޤ
sscanf("img15.gif", "img%d.%s", &$strNumber, &$strExt);
ʸ󤫤եޥåȤ˽äưФޤ

աPHPǤʸ"0"פFALSEȤʤΤǡ"0"פ򸡺ȤդɬפǤ

strpos($str, $strSearchWord)
ǽ˸ĤäХȰ֤֤ޤĤʤȤFALSE֤ޤ
strpos($str, $strSearchWord, ϥХȰ)
ꤷХȰ֤鸡ǽ˸ĤäХȰ֤֤ޤĤʤȤFALSE֤ޤ
strrpos($str, $strSearchWord)
Ǹ˸ĤäХȰ֤֤ޤĤʤȤFALSE֤ޤ
mb_strpos($str, $strSearchWord)
ǽ˸Ĥäʸ֤֤ޤĤʤȤFALSE֤ޤ
mb_strpos($str, $strSearchWord, ʸ(, "SJIS"))
ꤷʸ֤鸡ǽ˸Ĥäʸ֤֤ޤ
mb_strrpos($str, $strSearchWord(, "SJIS"))
Ǹ˸ĤäХȰ֤֤ޤĤʤȤFALSE֤ޤ
substr_count($str, ʸ)
ʸνи֤ޤ

աPHPǤϿ0FALSEȤʤΤդɬפǤ

ִ

substr_replace($str, ִʸ, ϥХȰ, Хȿ)
ʸΰ֤ޤ
substr_replace($str, ִʸ, ϥХȰ)
ʸ֤ޤ
str_replace(ִʸ, ִʸ, $str)
Ĥä٤Ƥʸ̤ʸ֤ޤ
strtr($str, ִʸå, ִʸå)
ʸåȤ˴ޤޤʸ򤽤줾ִޤ
strtr($str, Ϣ)
ϢΥʸʸִޤ
strrev($str)
ʸդޤˤޤ
mb_convert_kana($str, ܸѴץʸ(, ʸ))
ѡȾѴԤޤ
rѱѻ Ⱦѱѻ
RȾѱѻ ѱѻ
nѿ Ⱦѿ
NȾѿ ѿ
aѱѿ Ⱦѱѿ
AȾѱѿ ѱѿ
sѥڡ Ⱦѥڡ
SȾѥڡ ѥڡ
kѥ Ⱦѥ
KȾѥ ѥʡʸ
KVȾѥ ѥʡϵͤ
hѤҤ餬 ȾѤҤ餬
HȾѤҤ餬 ѤҤ餬ʡʸ
HVȾѤҤ餬 ѤҤ餬ʡϵͤ
cѥ ѤҤ餬
CѤҤ餬 ѥ

$str = sprintf("%02d", $i);
եޥåȤʸ֤ޤ
number_format($strNumber)
ʸ򣳷Υ޶ڤ֤ޤ
trim($str)
ζޤ
ltrim($str)
¦ζޤ
rtrim($str)
¦ζޤ
wordwrap($str, 10, "<br>", 1)
ХȿDzԤޤ裳ꤵƤʤȤϲʸȤʤޤ˻ʸǽȤϺǸΥѥ᡼ˣꤷޤȾѤѤߤƤȤ˽Ǥʤ礬ޤ

ʸѴ

ǽʸɰ

EUC-JPܸUNIXƥɸʸ
SJISWindows, Macɸʸ
UTF-8Unicode
JISŻҥ᡼ʤɤǻȤʸ
mb_detect_encoding($str)
ʸϤʸʸޤ
mb_internal_encoding()
ʸɤɽʸޤ
mb_internal_encoding("UTF-8")
ʸɤUTF-8ꤷޤ¾"SJIS", "JIS", "EUC-JP"Ǥޤ
mb_convert_encoding($str, "UTF-8")
ʸɤUTF-8ؤʸѴԤޤ
mb_convert_encoding($str, "UTF-8", "SJIS")
SJISʸɤUTF-8ؤʸѴԤޤ
mb_convert_variables("UTF-8", "SJIS", $arList)
󤹤٤ƤǤǡSJISUTF-8ؤʸѴԤޤ

webϤѴ

nl2br($str)
ʸ<br />Ѵޤ
htmlspecialchars($str)
HTMLʸ<>'&"פ&lt;פʤɤѴޤ
strip_tags($str)
HTMLޤ
addslashes($str)
󥰥륯('), ֥륯("),Хåå (\) ,NUL (̥Х) \ ǥפޤDB˥ǡǼˡ¹ԤƤޤեJISɤΣХܤХååξ⥨פΤդƤ
stripslashes($str)
פ줿󥰥륯('), ֥륯("),Хåå (\) ,NUL (̥Х) Υ׵ \ ޤDBǡȤ˼¹Ԥޤ
urlencode(󥳡ʸ)
URL󥳡ɤʸ֤ޤ
urldecode(󥳡ɸʸ)
URLǥɤʸ֤ޤ
parse_str("p1=a&p2=b")
ʸϤơѿξ$p1, $p2)ޤ

¾Ѵ

strtolower($str)
ʸִޤ
strtoupper($str)
ʸִޤ
dechex(255)
10ʿ 16ʿɽʸ֤ޤξ"ff"֤ޤ
hexdec("ff")
16ʿ 10ʿɽʸ֤ޤξ"255"֤ޤ
decbin(12)
10ʿ 2ʿɽʸ֤ޤξ"1100"֤ޤ
bindec("1100")
2ʿ 10ʿɽʸ֤ޤξ"12"֤ޤ
base_convert("oldʿʸ", oldʿ, newʿ)
oldʿʸ󤫤newʿʸѴޤ
crypt($str(, ŹΥ١Ȥʤ룲ʸ))
DES르ꥺѴϥåʸ֤ޤ
md5($str)
MD5르ꥺѴϥåʸ֤ޤ
sha1($str)
sha1르ꥺѴϥåʸ֤ޤ
crc32($str)
CRCå֤ͤޤ
uniqid()
13ʸΥˡIDʸޤ
escapleshellcmd($str)
Υ᥿ʸ򥨥

ͱ黻

round($f)
裱̤ǻͼθޤ
floor($f)
裱̤ڤΤƤޤ
ceil($f)
裱̤ڤ夲ޤ
abs($f)
ͤޤ
pow($i, $n)
$i$nͤޤ
sqrt($f)
ʿޤ
max($a, $b(, ...))
֤ͤޤ
max()
֤ͤޤ
min($a, $b(, ...))
Ǿ֤ͤޤ
min()
Ǿ֤ͤޤ
rand(Ǿ, )
ǾͰʾ塢ְʲ֤ޤsrand((double)microtime() * 100000);
mt_rand(Ǿ, )
ǾͰʾ塢ְʲ®֤ޤmt_srand((double)microtime() * 100000);

deg2rad(30)
ñ̤γ 饸ñ̤γ
rad2deg(2 * M_PI / 8)
饸ñ̤γ ñ̤γ
sin(deg2rad(30))
ͤޤ
cos(deg2rad(30))
ͤޤ
tan(deg2rad(30))
󥸥ͤޤ
asin(0.5)
͡ʥ饸ñ̡ˤޤ-1ʾ壱ʲͤꤷޤ
acos(0.5)
͡ʥ饸ñ̡ˤޤ-1ʾ壱ʲͤꤷޤ
atan(0.5)
󥸥͡ʥ饸ñ̡ˤޤ
atan2(x, y)
xyͤꤷơ󥸥͡ʥ饸ñ̡ˤޤ

==
ƤƱȤTRUE֤ޤ
===
ޤƤפȤTRUE֤ޤ
count($arList)
ǿ֤ޤ
count($arList, COUNT_RECURSIVE)
¿ǿ֤ޤ
array_count_values($arList)
ͤ򥭡ȤиͤȤޤ
end($arList)
κǸ֤ͤޤ
array_key_exists($strKey, $arList)
˥¸ߤTRUE֤ޤ
isset($arList[$strKey])
˥¸ߤNULLʳͤꤵƤTRUE֤ޤ
in_array(&strValue, $arList)
ͤ¸ߤTRUE֤ޤ
array_search(&strValue, $arList)
ͤ¸ߤХǥå֤ޤ¸ߤʤFALSE֤ޤաPHPǤϿ0FALSEȤʤΤդɬפǤ
array_sum($arList)
ͤιͤ׻֤ޤ
array_walk($arList, "func_name")
function func_name($value, $key){...}˳ǤƸƤӽФޤ

ɲá

array_push($arList, $item)
Ǥɲäޤ
array_pop($arList)
ǤФޤ
array_unshift($arList, $item)
ƬǤɲäޤ
array_shift($arList)
ƬǤФޤ
unset($arList[$key])
λꤷǤޤ
array_splice($arList, ϥǥå, Ŀ)
ꥤǥåĿǤޤ
array_splice($arList, ϥǥå, Ŀ, ɲäѿޤ)
ꥤǥåĿǤơɲäޤʤִޤ

¤ؤ

sort($arList)
ϢۤǤʤͤξǥȤޤ
rsort($arList)
ϢۤǤʤͤι߽ǥȤޤ
asort($arList)
ϢͤξǥȤޤ
arsort($arList)
Ϣͤι߽ǥȤޤ
ksort($arList)
Ϣ򥭡ξǥȤޤ
krsort($arList)
Ϣ򥭡ι߽ǥȤޤ
natsort($arList)
ǥȤޤ
array_reverse($arList)
ս¤ؤޤǥåϣޤ
array_reverse($arList, TRUE)
ս¤ؤޤǥåݻޤ
array_flip($arList)
ͤؤޤƱͤʣäȤϡǸΥͤȤƻĤޤ
shuffle($arList)
򥷥åե뤷ޤ餫srand((double)microtime() * 100000);ȽƤޤ

array_keys($arList)
Фơޤ
array_values($arList)
ͤФơޤ
array_unique($arList)
󤫤ʣͤޤΤȤĤΤϺǽ˸ĤäȤʤޤ
array_slice($arList, ϥǥå(, ǿ))
ΰȼФޤǥåϣ鿶ľޤ
$random_key = array_rand($arList)
Ĥǵޤͤ$arList[$random_key]
$random_keys = array_rand($arList, Ŀ)
ʣǵޤͤ$arList[$random_keys[0]], $arList[$random_keys[1]], ...

Ÿ

list($var1, $var2, $var3, ...) = $arList;
ͤʣѿŸޤ
extract($arList)
̾ȤѿͤŸޤ
compact("key1", "key2", "key3", ...)
ѿ̾򥭡ȤƤͤȤϢޤ
range(, λ(, ֳ))
ͤ齪λͤޤǤͤޤǥåϣȤʤޤ

ƱΤα黻

array_merge(Array("a", "b", "c"), Array("b", "x", "y"))
Ƥ礷ޤǥåϣ鿶ľޤξ硢Array(0=>"a", 1=>"b", 2=>"c", 3=>"b", 4=>"x", 5=>"y")Ȥʤޤ
array_diff(Array("a", "b", "c"), Array("b", "x", "y")(, ...))
ܤ󤫤飲ܰʹߤͤĹܤޤǥåͤϵͤޤξ硢Array(0=>"a", 2=>"c")Ȥʤޤ
array_diff_assoc(Array("a", "b", "c"), Array("b", "x", "y")(, ...))
ܤ󤫤飲ܰʹߤΥͤפܤޤǥåͤϵͤޤξ硢Array(0=>"a", 1=>"b", 2=>"c")Ȥʤޤ
array_intersect(Array("a", "b", "c"), Array("b", "x", "y"))
ĤǶ̤ͤĹܤФޤξ硢Array(1=>"b")Ȥʤޤ
array_intersect_assoc(Array("a", "b", "c"), Array("b", "x", "y"))
ĤǥޤưפͤĹܤФޤξ硢Array()Ȥʤޤ

ʸʬ

explode(",", $str)
ʸꤷڤʸʬ䤷֤ޤ<㡧list($year, $month, $day) = explode('-', '2010-01-01');
preg_split("/[\s,]+/", $str(, ʬ))
ʸꤷڤʸʬ䤷֤ޤڤʸɽȤޤǿѥ᡼ɲäǤޤ֤Υ᥽åɡsplit(侩), spliti, mb_splitɲäʬǤޤ磲ʬ䤹Ȥϣꤷޤ
str_split($var)
ʸʸŤĤʬ䤷֤ޤ

ҤȤĤʸ˷

implode(ڤʸ, $arList)
γǤڤʸϢ뤷ʸ֤ޤ
join(ڤʸ, $arList)
implodeƱưǤ

ɽ

ɽ

^Ƭ
$
.ǤդΣʸ
[ABC]ABCɤ줫ʸ
[A-Z]AZΤɤ줫ʸ
[^A-Za-z]ե٥åȰʳΣʸ
A*AΣʾ巫֤
A+AΣʾ巫֤
A?Aޤϣ
A{5}A
A{5,}
A{5,8}A󤫤飸
(ABC)|(XYZ)ABCȤ¤ӤޤXYZȤ¤
\n
\r
\t
\$$Ȥʸ
\\\Ȥʸ

ɽȤ߹碌

(ABC)+ABCȤ¤Ӥʾ巫֤
[a-z]*ʸʾη֤
\$$$Ȥʸ

ereg("[A-Z]{3}", $str)
ޥåȤTRUE֤ޤ
ereg("[A-Z]{3}", $str, $strResult)
ޥåȤTRUE֤$strResult˥ޥåʸ֤ޤ

֤Υ᥽åɡeregi, mb_ereg, mb_eregi

ִ

ereg_replace("[A-Z]{3}", ִʸ, $str)
ޥåʸִʸ֤ޤִʸ\\1ȡܤ˥ޥåʸޤ

֤Υ᥽åɡeregi_replace, mb_ereg_replace, mb_eregi_replace

$str = "0123(45)6789";
echo ereg_replace("([0-9]{2,})\(([0-9]{1,4})\)([0-9]{4})", "\\1-\\2-\\3", $str);

ʬ

split򻲾ȤƤ