PHP String Functions
The following string functions are the part of the PHP core so you can use these functions within your script without any further installation.
| Function | Description |
|---|---|
addcslashes() | Returns a string with backslashes before the specified characters |
addslashes() | Returns a string with backslashes before the characters that need to be escaped. These characters are single quote ('), double quote ("), backslash (\) and NULL |
bin2hex() | Convert binary data into hexadecimal values |
chop() | Strip whitespace (or other characters) from the end of a string. Alias of rtrim() |
chr() | Returns a one-character string containing the character specified by ASCII |
chunk_split() | Split a string into smaller chunks |
convert_cyr_string() | Converts a string from one Cyrillic character set to another |
convert_uudecode() | Decodes a uuencoded string |
convert_uuencode() | Encodes a string using the uuencode algorithm |
count_chars() | Return information about characters used in a string |
crc32() | Calculates the crc32 polynomial of a string |
crypt() | One-way string encryption (or hashing) |
echo() | Output one or more strings |
explode() | Split a string into an array by a specified string |
fprintf() | Write a formatted string to a specified output 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 |
hex2bin() | Decodes a hexadecimally encoded 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 characters |
htmlspecialchars() | Convert special characters to HTML entities |
implode() | Return a string by joining the elements of an array with a specified string |
join() | Alias of implode() |
lcfirst() | Converts the first character of a string to lowercase |
levenshtein() | Calculate Levenshtein distance between two strings |
localeconv() | Returns localized numeric and monetary formatting information |
ltrim() | Removes whitespace (or other characters) from the beginning of a string |
md5() | Calculate the md5 hash of a string |
md5_file() | Calculates the md5 hash of a file |
metaphone() | Calculate the metaphone key of a string |
money_format() | Formats a number as a currency string |
nl_langinfo() | Returns specific local information |
nl2br() | Inserts HTML line breaks before all newlines in a string |
number_format() | Format a number with grouped thousands |
ord() | Returns the ASCII value of the first character of a string |
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 |
quoted_printable_encode() | Convert a 8 bit string to a quoted-printable string |
quotemeta() | Quotes meta characters |
rtrim() | Removes whitespace (or other characters) from the end of a string |
setlocale() | Set locale information |
sha1() | Calculate the sha1 hash of a string |
sha1_file() | Calculate the sha1 hash of a file |
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_getcsv() | Parse a CSV string into an array |
str_ireplace() | Replace all occurrences of the search string with the replacement string. Case-insensitive version of str_replace(). |
str_pad() | Pad a string to a certain length with another string |
str_repeat() | Repeats a string a specified number of times |
str_replace() | Replace all occurrences of the search string with the replacement string (case-sensitive) |
str_rot13() | Performs the ROT13 encoding on a string |
str_shuffle() | Randomly shuffles all characters in a string |
str_split() | Splits a string into an array |
str_word_count() | Counts the number of words in a string |
strcasecmp() | Binary safe comparison of two string (case-insensitive) |
strchr() | Finds the first occurrence of a string inside another string. Alias of strstr() |
strcmp() | Binary safe comparison of two string (case sensitive) |
strcoll() | Locale based comparison of two string (case sensitive) |
strcspn() | Returns the number of characters found in a string before any part of some specified characters are found |
strip_tags() | Strip HTML and PHP tags from a string |
stripcslashes() | Un-quotes a string quoted with addcslashes() |
stripos() | Find the position of the first occurrence of a case-insensitive substring in a string |
stripslashes() | Un-quotes a quoted string |
stristr() | Finds the first occurrence of a string inside another string (case-insensitive). Case-insensitive version of strstr() |
strlen() | Returns the length of a string |
strnatcasecmp() | Compares two strings using a "natural order" algorithm (case-insensitive) |
strnatcmp() | Compares two strings using a "natural order" algorithm (case-sensitive) |
strncasecmp() | Binary safe string comparison of the first n characters (case-insensitive) |
strncmp() | Binary safe string comparison of the first n characters (case-sensitive) |
strpbrk() | Searches a string for any of a set of characters |
strpos() | Find the position of the first occurrence of a substring in a string |
strrchr() | Find the last occurrence of a character in a string |
strrev() | Reverses a string |
strripos() | Find the position of the last occurrence of a string inside another string (case-insensitive) |
strrpos() | Find the position of the last occurrence of a string inside another string (case-sensitive) |
strspn() | Returns the number of characters found in a string that contains only characters from a specified charlist |
strstr() | Find the first occurrence of a string inside another string (case-sensitive) |
strtok() | Splits a string into smaller strings |
strtolower() | Converts a string to lowercase |
strtoupper() | Converts a string to uppercase |
strtr() | Translate characters or replace substrings |
substr() | Return a part of a string |
substr_compare() | Compares of two strings from a specified start position up to the length of the comparison. The comparison is binary safe and optionally case-sensitive |
substr_count() | Counts the number of times a substring occurs in a string |
substr_replace() | Replaces a part of a string with another string |
trim() | Removes whitespace (or other characters) from the beginning and end of a string |
ucfirst() | Converts the first character of a string to uppercase |
ucwords() | Converts the first character of each word in a string to uppercase |
vfprintf() | Write a formatted string to a specified output stream |
vprintf() | Output a formatted string |
vsprintf() | Return a formatted string |
wordwrap() | Wraps a string to a given number of characters |
0 comments:
Post a Comment