ThinkPHP learning--a complete collection of PHP string processing functions

A Complete Collection of PHP String Processing Functions

I just read a good summary article - A Complete Collection of PHP String Processing Functions

Share it:

addcslashes — Add backslash escape characters to some characters in the string
addslashes — Escape characters in the string in a specified way
bin2hex — Convert binary data to hexadecimal representation
chop — Alias ​​function of rtrim()
chr — Returns the ASCII code of a character
chunk_split — Splits the string into small pieces according to a certain character length
convert_cyr_string — Converts Cyrillic characters to other characters
convert_uudecode — Decrypts a string
convert_uuencode — Encrypt a string
count_chars — Return the character usage information in a string
crc32 — Calculate the crc32 polynomial of a string
crypt — One-way hash encryption function
echo — Used to display some content
explode — Convert a The string is converted into an array form using the delimiter
fprintf — Returns the data as required and writes it directly to the document stream
get_html_translation_table — Returns the HTML entity that can be converted
hebrev — Converts the Hebrew-encoded string into visual text
hebrevc — Convert Hebrew-encoded strings to visual text
html_entity_decode — The inverse function of htmlentities () function, convert HTML entities into characters
htmlentities — Convert some characters in the string to HTML entities
htmlspecialchars_decode —htmlspecialchars( ) function, convert HTML entities into characters
htmlspecialchars — Convert some characters in a string to HTML entities
implode — Convert an array into a string using a specific delimiter
join — Convert an array into a string, implode Alias ​​of the () function
levenshtein — Calculate the difference between two words
localeconv — Get the format definition related to numbers
ltrim — Remove the blanks or specified characters on the left side of the string
md5_file — Encrypt a file with the MD5 algorithm
md5 — Encrypt a string with MD5 algorithm
metaphone — Determine the pronunciation rules of a string
money_format — Format the output of numbers according to parameters
nl_langinfo — Query language and local information
nl2br — Change the newline character in the string " n" is replaced with "
"
number_format — formatted output of numbers according to parameters
ord — converts an ASCII code into a character
parse_str — converts a string in a certain format into variables and values
print — used to output a single value
printf — display the data as required
quoted_printable_decode — encrypt a string into an 8-bit binary string
quotemeta — escape several specific characters
rtrim — remove characters The space on the right side of the string or the specified character
setlocale — Set the local format for numbers, dates, etc.
sha1_file — Encrypt a file with the SHA1 algorithm
sha1 — Encrypt a string with the SHA1 algorithm
similar_text — Compare two characters String, returns the number of similar characters that the system considers
soundex — determines the pronunciation rules of a string
sprintf — returns the data as required, but does not output
sscanf — can format the string
str_ireplace — like str_replace() The function matches and replaces strings in the same way, but is not case-sensitive
str_pad — pads both sides of the string
str_repeat — repeatedly combines strings
str_replace — matches and replaces strings
str_rot13 — performs ROT13 encryption on the string Processing
str_shuffle — Randomly sort the characters in a string
str_split — Split a string into an array according to the character spacing
str_word_count — Get the English word information in the string
strcasecmp — Compare the size of the string, no Case-sensitive
strchr — Alias ​​for the strstr() function that returns part of a string by comparison
strcmp — Compares the size of a string
strcoll — Compares the size of a string according to local settings
strcspn — Returns the length of consecutive non-matching characters The value of
strip_tags — removes HTML and PHP code from a string
stripcslashes — unescapes the addcslashes() function to escape the processed string
stripos — finds and returns the position of the first match, matching is not case-sensitive
stripslashes — Anti-escaping addslashes() function to escape processed strings
stristr — Returns parts of a string through comparison, case-insensitive comparison
strlen — Gets the encoded length of a string
strnatcasecmp — Uses natural The sorting method compares the size of strings, and is not case-sensitive.
strnatcmp — uses the natural sorting method to compare the size of strings.
strncasecmp — compares the size of the first N characters of the string, which is not case-sensitive.
strncmp — compares characters. Compare the size of the first N characters of the string
strpbrk — Return a part of a string by comparison
strpos — Find and return the position of the first match
strrchr — Return a part of a string by comparing from back to front
strrev — Arrange all the letters in the string in reverse order
strripos - Search from back to front and return the position of the first match, matching is not case sensitive
strrpos - Search from back to front and return the position of the first match
strspn — Match and return the value of the length of consecutive occurrences of characters
strstr — Return part of a string by comparison
strtok — Split a string by a specified number of characters
strtolower — Convert a string to lowercase
strtoupper — Convert a string Convert to uppercase
strtr — compare and replace strings
substr_compare — compare truncated strings
substr_count — count the number of occurrences of a certain character segment in the string
substr_replace — replace some characters in the string
substr — Truncate the string
trim — Remove the blanks or specified characters on both sides of the string
ucfirst — Convert the first letter of the given string to uppercase
ucwords — Convert the first letter of each English word in the given string letters become uppercase
vfprintf — Return the data as required and write it directly into the document stream
vprintf — Display the data as required
vsprintf — Return the data as required, but do not output it
wordwrap — Follow certain characters Length split string

The above introduces ThinkPHP learning - a complete collection of PHP string processing functions, including various aspects. I hope it will be helpful to friends who are interested in PHP tutorials.