Complete list of PHP string processing functions-PHP Tutorial-php.cn

Complete list of PHP string processing functions

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Release： 2016-07-25 09:12:39

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addcslashes — Escape characters in a string using backslashes, C-style
addslashes — Use backslashes to quote strings
bin2hex — Convert binary data to hexadecimal representation
chop — alias for rtrim
chr — Returns the specified character
chunk_split — Split a string into small chunks
convert_cyr_string — Convert characters from one Cyrillic character to another
convert_uudecode — Decode a uuencoded string
convert_uuencode — Encode a string using uuencode
count_chars — Returns information about the characters used in a string
crc32 — Compute the crc32 polynomial of a string
crypt — One-way string hashing
echo — Output one or more strings
explode — Split one string into another
fprintf — writes a formatted string to a stream
get_html_translation_table — Returns the translation table using htmlspecialchars and htmlentities
hebrev — Convert logical-Hebrew to visual-Hebrew
hebrevc — Convert logical-Hebrew to visual-Hebrew and convert newlines
hex2bin — Convert hexadecimal string to binary string
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 normal characters
htmlspecialchars — Convert special characters to HTML entities
implode — Convert the values of a one-dimensional array into a string
join — alias implode
lcfirst — Make the first character of a string lowercase
levenshtein — Calculate the edit distance between two strings
localeconv — Get numeric formatting information
ltrim — Remove whitespace characters (or other characters) at the beginning of a string
md5_file — Calculate the MD5 hash value of the specified file
md5 — Computes 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 — Insert HTML newlines before all new lines in a string
number_format — Format a number with thousands separators
ord — Returns the ASCII code value of a character
parse_str — Parse a string into multiple variables
print — output string
printf — output formatted string
quoted_printable_decode — Convert a quoted-printable string to an 8 bit string
quoted_printable_encode — Convert a 8 bit string to a quoted-printable string
quotemeta — Quote meta characters
rtrim — remove whitespace characters (or other characters) from the end of a string
setlocale — Set locale information
sha1_file — Calculate the sha1 hash of a file
sha1 — Computes the sha1 hash value of a string
similar_text — Calculate the similarity of two strings
soundex — Calculate the soundex key of a string
sprintf — Return a formatted string
sscanf — Parse input characters according to the specified format
str_getcsv — Parse a CSV string into an array
str_ireplace — Case-ignoring version of str_replace
str_pad — Pad a string to a specified length with another string
str_repeat — Repeat a string
str_replace — Substring replacement
str_rot13 — Perform ROT13 conversion on a string
str_shuffle — Randomly shuffle a string
str_split — Convert string to array
str_word_count — Returns the usage of words in a string
strcasecmp — Binary safe comparison of strings (case insensitive)
strchr — alias strstr
strcmp — Binary safe string comparison
strcoll — Locale-based string comparison
strcspn — Get the length of the starting substring of the non-matching mask
strip_tags — Strip HTML and PHP tags from strings
stripcslashes — dequote a string escaped using addcslashes
stripos — Find the first occurrence of a string (case insensitive)
stripslashes — dequote a quoted string
stristr — A case-ignoring version of the strstr function
strlen — Get the length of a string
strnatcasecmp — Compare strings using the "natural order" algorithm (case-insensitive)
strnatcmp — Compare strings using natural ordering algorithm
strncasecmp — Binary safe comparison of several characters at the beginning of a string (case insensitive)
strncmp — Binary safe comparison of several characters at the beginning of a string
strpbrk — Find any character in a set of characters in a string
strpos — Find the first occurrence of a string
strrchr — Find the last occurrence of a specified character in a string
strrev — Reverse a string
strripos — Calculate the position of the last occurrence of the specified string in the target string (case-insensitive)
strrpos — Calculate the position of the last occurrence of the specified string in the target string
strspn — Calculate the length of the first substring in a string where all characters exist in the specified character set.
strstr — Find the first occurrence of a string
strtok — token split string
strtolower — Convert string to lowercase
strtoupper — Convert a string to uppercase
strtr — Convert the specified character
substr_compare — Binary safe comparison of strings (specified length compared from offset position)
substr_count — Count the number of occurrences of a string
substr_replace — Replace a substring of a string
substr — Returns a substring of a string
trim — remove whitespace characters (or other characters) at the beginning and end of a string
ucfirst — Convert the first letter of a string to uppercase
ucwords — Convert the first letter of each word in a string to uppercase
vfprintf — Write a formatted string to a stream
vprintf — Output formatted string
vsprintf — Returns a formatted string
wordwrap — breaks a string into a specified number of words