Commonly used string functions in PHP

Addslashes--use a backslash to reference a string

CHR-Returns a single character that is specified relative to the ASCII code value.

Chunk_split--Splitting a string into small chunks

Count_chars--information about the characters used to return a string

CRC32--computes the crc32 polynomial of a string

crypt– to encrypt strings with DES encoding

echo– output one or more strings

Explode--splitting another string with one string

sprintf– format a string and output

html_entity_decode– Convert all HTML entities to their corresponding characters

htmlentities– convert all characters to HTML entities

Htmlspecialchars_decode-Converts a specific HTML entity to the corresponding character

Htmlspecialchars-Converts a specific character into an HTML entity

implode– concatenate all elements of an array into a single string

Alias of Join--implode () function

LTrim--Remove the whitespace (or other characters) to the left of a string

md5_file– get MD5 summary of files

MD5--Get a MD5 summary of the string

money_format– to format a number in the format of a currency

NL2BR--Inserts an HTML wrap tag in a string.

Number_format--format a number with grouped thousands

ord– returns the ASCII value of a character

Parse_str--Parsing string variables

print– output A string

printf– format and output the string

RTrim--Remove the whitespace (or other characters) to the right of a string

sha1_file– encode a file with SHA1 (encrypted)

SHA1--encode a string with SHA1 (encrypt)

Similar_text-Calculates the similarity between two strings

sprintf– returns a formatted string

Str_ireplace--Str_replace () ignores case versions.

Str_pad--Padding string

Str_repeat--repeating string

str_replace– replacing the specified string

str_shuffle– Random string content

Str_split--Converts a string into an array

Str_word_count--Returns the number of words in a string

strcasecmp– Case Insensitive string comparison

STRCHR--alias of Strstr ()

strcmp– string comparison (binary string comparison)

strip_tags– to remove HTML and PHP tags from a string

Stripos-the position of the first occurrence of a case-insensitive lookup character (or string) in a string

Stripslashes-Removes backslashes added using the function addslashes ().

STRISTR--Case insensitive strstr ()

strlen– gets the length of the string

STRNATCASECMP--Case insensitive string comparisons, using natural sorting algorithms

STRNATCMP--Comparison of strings, using natural sorting algorithm

Strpos--Finds the position where a character first appears in a string.

strrchr– returns a substring that begins at the last occurrence of a character until the end of the string.

strrev– to invert the string output

Strripos-Returns the position of the last occurrence of a character in the string (case insensitive).

Strrpos-Returns the position of the last occurrence of a character in the string (case-sensitive).

strstr– returns a substring (containing the character) that begins at the first occurrence of a character until the end of the string.

strtolower– converts all characters of a string to lowercase

strtoupper– converts all characters of a string to uppercase

substr_count– count occurrences of substrings (case-sensitive)

substr_replace– string substitution

substr– returns a string at the specified position

trim– remove whitespace (or other characters) of the left and right sides of the string

ucfirst– to capitalize the first character of a string

Ucwords-Capitalize the first letter of each word of a string

Commonly used string functions in PHP