php-string-functions
PHP String Functions
The PHP string functions are part of the PHP core. No installation is required to use these functions.
| SrN. | Function | Desc |
| 1 | addcslashes | Quote string with slashes in a C style |
| 2 | addslashes | Quote string with slashes |
| 3 | bin2hex | Convert binary data into hexadecimal representation |
| 4 | chop | Alias of rtrim |
| 5 | chr | Generate a single-byte string from a number |
| 6 | chunk_split | Split a string into smaller chunks |
| 7 | convert_cyr_string | Convert from one Cyrillic character set to another |
| 8 | convert_uudecode | Decode a uuencoded string |
| 9 | convert_uuencode | Uuencode a string |
| 10 | count_chars | Return information about characters used in a string |
| 11 | crc32 | Calculates the crc32 polynomial of a string |
| 12 | crypt | One-way string hashing |
| 13 | echo | Output one or more strings |
| 14 | explode | Split a string by a string |
| 15 | fprintf | Write a formatted string to a stream |
| 16 | get_html_translation_table | Returns the translation table used by htmlspecialchars and htmlentities |
| 17 | hebrev | Convert logical Hebrew text to visual text |
| 18 | hebrevc | Convert logical Hebrew text to visual text with newline conversion |
| 19 | hex2bin | Decodes a hexadecimally encoded binary string |
| 20 | html_entity_decode | Convert HTML entities to their corresponding characters |
| 21 | htmlentities | Convert all applicable characters to HTML entities |
| 22 | htmlspecialchars_decode | Convert special HTML entities back to characters |
| 23 | htmlspecialchars | Convert special characters to HTML entities |
| 24 | implode | Join array elements with a string |
| 25 | join | Alias of implode |
| 26 | lcfirst | Make a string's first character lowercase |
| 27 | levenshtein | Calculate Levenshtein distance between two strings |
| 28 | localeconv | Get numeric formatting information |
| 29 | ltrim | Strip whitespace (or other characters) from the beginning of a string |
| 30 | md5_file | Calculates the md5 hash of a given file |
| 31 | md5 | Calculate the md5 hash of a string |
| 32 | metaphone | Calculate the metaphone key of a string |
| 33 | money_format | Formats a number as a currency string |
| 34 | nl_langinfo | Query language and locale information |
| 35 | nl2br | Inserts HTML line breaks before all newlines in a string |
| 36 | number_format | Format a number with grouped thousands |
| 37 | ord | Convert the first byte of a string to a value between 0 and 255 |
| 38 | parse_str | Parses the string into variables |
| 39 | Output a string | |
| 40 | printf | Output a formatted string |
| 41 | quoted_printable_decode | Convert a quoted-printable string to an 8 bit string |
| 42 | quoted_printable_encode | Convert a 8 bit string to a quoted-printable string |
| 43 | quotemeta | Quote meta characters |
| 44 | rtrim | Strip whitespace (or other characters) from the end of a string |
| 45 | setlocale | Set locale information |
| 46 | sha1_file | Calculate the sha1 hash of a file |
| 47 | sha1 | Calculate the sha1 hash of a string |
| 48 | similar_text | Calculate the similarity between two strings |
| 49 | soundex | Calculate the soundex key of a string |
| 50 | sprintf | Return a formatted string |
| 51 | sscanf | Parses input from a string according to a format |
| 52 | str_contains | Determine if a string contains a given substring |
| 53 | str_ends_with | Checks if a string ends with a given substring |
| 54 | str_getcsv | Parse a CSV string into an array |
| 55 | str_ireplace | Case-insensitive version of str_replace |
| 56 | str_pad | Pad a string to a certain length with another string |
| 57 | str_repeat | Repeat a string |
| 58 | str_replace | Replace all occurrences of the search string with the replacement string |
| 59 | str_rot13 | Perform the rot13 transform on a string |
| 60 | str_shuffle | Randomly shuffles a string |
| 61 | str_split | Convert a string to an array |
| 62 | str_starts_with | Checks if a string starts with a given substring |
| 63 | str_word_count | Return information about words used in a string |
| 64 | strcasecmp | Binary safe case-insensitive string comparison |
| 65 | strchr | Alias of strstr |
| 66 | strcmp | Binary safe string comparison |
| 67 | strcoll | Locale based string comparison |
| 68 | strcspn | Find length of initial segment not matching mask |
| 69 | strip_tags | Strip HTML and PHP tags from a string |
| 70 | stripcslashes | Un-quote string quoted with addcslashes |
| 71 | stripos | Find the position of the first occurrence of a case-insensitive substring in a string |
| 72 | stripslashes | Un-quotes a quoted string |
| 73 | stristr | Case-insensitive strstr |
| 74 | strlen | Get string length |
| 75 | strnatcasecmp | Case insensitive string comparisons using a "natural order" algorithm |
| 76 | strnatcmp | String comparisons using a "natural order" algorithm |
| 77 | strncasecmp | Binary safe case-insensitive string comparison of the first n characters |
| 78 | strncmp | Binary safe string comparison of the first n characters |
| 79 | strpbrk | Search a string for any of a set of characters |
| 80 | strpos | Find the position of the first occurrence of a substring in a string |
| 81 | strrchr | Find the last occurrence of a character in a string |
| 82 | strrev | Reverse a string |
| 83 | strripos | Find the position of the last occurrence of a case-insensitive substring in a string |
| 84 | strrpos | Find the position of the last occurrence of a substring in a string |
| 85 | strspn | Finds the length of the initial segment of a string consisting entirely of characters contained within a given mask |
| 86 | strstr | Find the first occurrence of a string |
| 87 | strtok | Tokenize string |
| 88 | strtolower | Make a string lowercase |
| 89 | strtoupper | Make a string uppercase |
| 90 | strtr | Translate characters or replace substrings |
| 91 | substr_compare | Binary safe comparison of two strings from an offset, up to length characters |
| 92 | substr_count | Count the number of substring occurrences |
| 93 | substr_replace | Replace text within a portion of a string |
| 94 | substr | Return part of a string |
| 95 | trim | Strip whitespace (or other characters) from the beginning and end of a string |
| 96 | ucfirst | Make a string's first character uppercase |
| 97 | ucwords | Uppercase the first character of each word in a string |
| 98 | utf8_decode | Converts a string from UTF-8 to ISO-8859-1, replacing invalid or unrepresentable characters |
| 99 | utf8_encode | Converts a string from ISO-8859-1 to UTF-8 |
| 100 | vfprintf | Write a formatted string to a stream |
| 101 | vprintf | Output a formatted string |
| 102 | vsprintf | Return a formatted string |
| 103 | wordwrap | Wraps a string to a given number of characters |
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