PHP中的字符串處理函數(shù)（String Functions） 全總結(jié)
Jun 13, 2016 am 09:36 AM
php 字符串處理函數(shù)大總結(jié)，這些都是系統(tǒng)自帶的php字符串處理函數(shù)。
addcslashes — 為字符串里面的部分字符添加反斜線轉(zhuǎn)義字符
addslashes — 用指定的方式對(duì)字符串里面的字符進(jìn)行轉(zhuǎn)義
bin2hex — 將二進(jìn)制數(shù)據(jù)轉(zhuǎn)換成十六進(jìn)制表示
chop — rtrim() 的別名函數(shù)
chr — 返回一個(gè)字符的ASCII碼
chunk_split — 按一定的字符長(zhǎng)度將字符串分割成小塊
convert_cyr_string — 將斯拉夫語(yǔ)字符轉(zhuǎn)換為別的字符
convert_uudecode — 解密一個(gè)字符串
convert_uuencode — 加密一個(gè)字符串
count_chars — 返回一個(gè)字符串里面的字符使用信息
crc32 — 計(jì)算一個(gè)字符串的crc32多項(xiàng)式
crypt — 單向散列加密函數(shù)
echo — 用以顯示一些內(nèi)容
explode — 將一個(gè)字符串用分割符轉(zhuǎn)變?yōu)橐粩?shù)組形式
fprintf — 按照要求對(duì)數(shù)據(jù)進(jìn)行返回，并直接寫入文檔流
get_html_translation_table — 返回可以轉(zhuǎn)換的HTML實(shí)體
hebrev — 將Hebrew編碼的字符串轉(zhuǎn)換為可視的文本
hebrevc — 將Hebrew編碼的字符串轉(zhuǎn)換為可視的文本
html_entity_decode — htmlentities ()函數(shù)的反函數(shù)，將HTML實(shí)體轉(zhuǎn)換為字符
htmlentities — 將字符串中一些字符轉(zhuǎn)換為HTML實(shí)體
htmlspecialchars_decode — htmlspecialchars()函數(shù)的反函數(shù)，將HTML實(shí)體轉(zhuǎn)換為字符
htmlspecialchars — 將字符串中一些字符轉(zhuǎn)換為HTML實(shí)體
implode — 將數(shù)組用特定的分割符轉(zhuǎn)變?yōu)樽址?br>
join — 將數(shù)組轉(zhuǎn)變?yōu)樽址?，implode()函數(shù)的別名
levenshtein — 計(jì)算兩個(gè)詞的差別大小
localeconv — 獲取數(shù)字相關(guān)的格式定義
ltrim — 去除字符串左側(cè)的空白或者指定的字符
md5_file — 將一個(gè)文件進(jìn)行MD5算法加密
md5 — 將一個(gè)字符串進(jìn)行MD5算法加密
metaphone — 判斷一個(gè)字符串的發(fā)音規(guī)則
money_format — 按照參數(shù)對(duì)數(shù)字進(jìn)行格式化的輸出
nl_langinfo — 查詢語(yǔ)言和本地信息
nl2br — 將字符串中的換行符“/n”替換成“
”
number_format — 按照參數(shù)對(duì)數(shù)字進(jìn)行格式化的輸出
ord — 將一個(gè)ASCII碼轉(zhuǎn)換為一個(gè)字符
parse_str — 把一定格式的字符串轉(zhuǎn)變?yōu)樽兞亢椭?br>
print — 用以輸出一個(gè)單獨(dú)的值
printf — 按照要求對(duì)數(shù)據(jù)進(jìn)行顯示
quoted_printable_decode — 將一個(gè)字符串加密為一個(gè)8位的二進(jìn)制字符串
quotemeta — 對(duì)若干個(gè)特定字符進(jìn)行轉(zhuǎn)義
rtrim — 去除字符串右側(cè)的空白或者指定的字符
setlocale — 設(shè)置關(guān)于數(shù)字，日期等等的本地格式
sha1_file — 將一個(gè)文件進(jìn)行SHA1算法加密
sha1 — 將一個(gè)字符串進(jìn)行SHA1算法加密
similar_text — 比較兩個(gè)字符串，返回系統(tǒng)認(rèn)為的相似字符個(gè)數(shù)
soundex — 判斷一個(gè)字符串的發(fā)音規(guī)則
sprintf — 按照要求對(duì)數(shù)據(jù)進(jìn)行返回，但是不輸出
sscanf — 可以對(duì)字符串進(jìn)行格式化
str_ireplace — 像str_replace()函數(shù)一樣匹配和替換字符串，但是不區(qū)分大小寫
str_pad — 對(duì)字符串進(jìn)行兩側(cè)的補(bǔ)白
str_repeat — 對(duì)字符串進(jìn)行重復(fù)組合
str_replace — 匹配和替換字符串
str_rot13 — 將字符串進(jìn)行ROT13加密處理
str_shuffle — 對(duì)一個(gè)字符串里面的字符進(jìn)行隨機(jī)排序
str_split — 將一個(gè)字符串按照字符間距分割為一個(gè)數(shù)組
str_word_count — 獲取字符串里面的英文單詞信息
strcasecmp — 對(duì)字符串進(jìn)行大小比較，不區(qū)分大小寫
strchr — 通過(guò)比較返回一個(gè)字符串的部分strstr()函數(shù)的別名
strcmp — 對(duì)字符串進(jìn)行大小比較
strcoll – 根據(jù)本地設(shè)置對(duì)字符串進(jìn)行大小比較
strcspn — 返回字符連續(xù)非匹配長(zhǎng)度的值
strip_tags — 去除一個(gè)字符串里面的HTML和PHP代碼
stripcslashes — 反轉(zhuǎn)義addcslashes()函數(shù)轉(zhuǎn)義處理過(guò)的字符串
stripos — 查找并返回首個(gè)匹配項(xiàng)的位置，匹配不區(qū)分大小寫
stripslashes — 反轉(zhuǎn)義addslashes()函數(shù)轉(zhuǎn)義處理過(guò)的字符串
stristr — 通過(guò)比較返回一個(gè)字符串的部分，比較時(shí)不區(qū)分大小寫
strlen — 獲取一個(gè)字符串的編碼長(zhǎng)度
strnatcasecmp — 使用自然排序法對(duì)字符串進(jìn)行大小比較，不區(qū)分大小寫
strnatcmp — 使用自然排序法對(duì)字符串進(jìn)行大小比較
strncasecmp — 對(duì)字符串的前N個(gè)字符進(jìn)行大小比較，不區(qū)分大小寫
strncmp — 對(duì)字符串的前N個(gè)字符進(jìn)行大小比較
strpbrk — 通過(guò)比較返回一個(gè)字符串的部分
strpos — 查找并返回首個(gè)匹配項(xiàng)的位置
strrchr — 通過(guò)從后往前比較返回一個(gè)字符串的部分
strrev — 將字符串里面的所有字母反向排列
strripos — 從后往前查找并返回首個(gè)匹配項(xiàng)的位置，匹配不區(qū)分大小寫
strrpos – 從后往前查找并返回首個(gè)匹配項(xiàng)的位置
strspn — 匹配并返回字符連續(xù)出現(xiàn)長(zhǎng)度的值
strstr — 通過(guò)比較返回一個(gè)字符串的部分
strtok — 用指定的若干個(gè)字符來(lái)分割字符串
strtolower — 將字符串轉(zhuǎn)變?yōu)樾?br>
strtoupper –將字符串轉(zhuǎn)變?yōu)榇髮?br>
strtr — 對(duì)字符串比較替換
substr_compare — 對(duì)字符串進(jìn)行截取后的比較
substr_count — 計(jì)算字符串中某字符段的出現(xiàn)次數(shù)
substr_replace — 對(duì)字符串中的部分字符進(jìn)行替換
substr — 對(duì)字符串進(jìn)行截取
trim — 去除字符串兩邊的空白或者指定的字符
ucfirst — 將所給字符串的第一個(gè)字母轉(zhuǎn)換為大寫
ucwords — 將所給字符串的每一個(gè)英文單詞的第一個(gè)字母變成大寫
vfprintf — 按照要求對(duì)數(shù)據(jù)進(jìn)行返回，并直接寫入文檔流
vprintf — 按照要求對(duì)數(shù)據(jù)進(jìn)行顯示
vsprintf — 按照要求對(duì)數(shù)據(jù)進(jìn)行返回，但是不輸出
wordwrap — 按照一定的字符長(zhǎng)度分割字符串
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