String 字符串处理函数

目录

addcslashes - 像 C 那样使用反斜线转义字符串中的字符

addslashes - 使用反斜线引用字符串

bin2hex - 将二进制数据转换成十六进制表示

chop - rtrim 的别名函数

chr - 返回指定的字符

chunk_split - 将字符串分割成小块

convert_cyr_string - 将字符由一种 Cyrillic 字符转换成另一种

convert_uudecode - Decode a uuencoded string

convert_uuencode - Uuencode a string

count_chars - 返回字符串所用字符的信息

crc32 - 计算一个字符串的 crc32 多项式

crypt - One-way string encryption (hashing)

echo - Output one or more strings

explode - 使用一个字符串分割另一个字符串

fprintf - Write a formatted string to a stream

get_html_translation_table - Returns the translation table used by htmlspecialchars and htmlentities

hebrev - Convert logical Hebrew text to visual text

hebrevc - Convert logical Hebrew text to visual text with newline conversion

html_entity_decode - Convert all HTML entities to their applicable characters

htmlentities - Convert all applicable characters to HTML entities

htmlspecialchars_decode - Convert special HTML entities back to characters

htmlspecialchars - Convert special characters to HTML entities

implode - Join array elements with a string

join - 别名 implode

levenshtein - Calculate Levenshtein distance between two strings

localeconv - Get numeric formatting information

ltrim - Strip whitespace (or other characters) from the beginning of a string

md5_file - Calculates the md5 hash of a given file

md5 - Calculate the md5 hash of a string

metaphone - Calculate the metaphone key of a string

money_format - Formats a number as a currency string

nl_langinfo - Query language and locale information

nl2br - Inserts HTML line breaks before all newlines in a string

number_format - Format a number with grouped thousands

ord - Return ASCII value of character

parse_str - Parses the string into variables

print - Output a string

printf - Output a formatted string

quoted_printable_decode - Convert a quoted-printable string to an 8 bit string

quotemeta - Quote meta characters

rtrim - Strip whitespace (or other characters) from the end of a string

setlocale - Set locale information

sha1_file - Calculate the sha1 hash of a file

sha1 - Calculate the sha1 hash of a string

similar_text - Calculate the similarity between two strings

soundex - Calculate the soundex key of a string

sprintf - Return a formatted string

sscanf - Parses input from a string according to a format

str_ireplace - Case-insensitive version of str_replace.

str_pad - Pad a string to a certain length with another string

str_repeat - Repeat a string

str_replace - Replace all occurrences of the search string with the replacement string

str_rot13 - Perform the rot13 transform on a string

str_shuffle - Randomly shuffles a string

str_split - Convert a string to an array

str_word_count - Return information about words used in a string

strcasecmp - Binary safe case-insensitive string comparison

strchr - 别名 strstr

strcmp - Binary safe string comparison

strcoll - Locale based string comparison

strcspn - Find length of initial segment not matching mask

strip_tags - Strip HTML and PHP tags from a string

stripcslashes - Un-quote string quoted with addcslashes

stripos - Find position of first occurrence of a case-insensitive string

stripslashes - Un-quote string quoted with addslashes

stristr - Case-insensitive strstr

strlen - Get string length

strnatcasecmp - Case insensitive string comparisons using a "natural order" algorithm

strnatcmp - String comparisons using a "natural order" algorithm

strncasecmp - Binary safe case-insensitive string comparison of the first n characters

strncmp - Binary safe string comparison of the first n characters

strpbrk - Search a string for any of a set of characters

strpos - Find position of first occurrence of a string

strrchr - Find the last occurrence of a character in a string

strrev - Reverse a string

strripos - Find position of last occurrence of a case-insensitive string in a string

strrpos - Find position of last occurrence of a char in a string

strspn - Find length of initial segment matching mask

strstr - Find first occurrence of a string

strtok - Tokenize string

strtolower - Make a string lowercase

strtoupper - Make a string uppercase

strtr - Translate certain characters

substr_compare - Binary safe optionally case insensitive comparison of 2 strings from an offset, up to length characters

substr_count - Count the number of substring occurrences

substr_replace - Replace text within a portion of a string

substr - Return part of a string

trim - Strip whitespace (or other characters) from the beginning and end of a string

ucfirst - Make a string's first character uppercase

ucwords - Uppercase the first character of each word in a string

vfprintf - Write a formatted string to a stream

vprintf - Output a formatted string

vsprintf - Return a formatted string

wordwrap - Wraps a string to a given number of characters using a string break character