A brief analysis of 51 PHP functions for processing strings_PHP Tutorial

Includes various aspects such as calculating string length, splitting strings, searching strings, etc.
1.AddSlashes: Add slashes to the string.
2.bin2hex: Convert binary to hexadecimal.
3.Chop: Remove continuous blanks.
4.Chr: Returns the ordinal value of the character.
5.chunk_split: Divide the string into small segments.
6.convert_cyr_string: Convert ancient Cyrillic strings into other strings.
7.crypt: Encrypt the string using DES encoding.
8.echo: Output string.
9.explode: Split the string.
10.flush: Clear the output buffer.
11.get_meta_tags: Extract the data of all meta tags in the file.
12.htmlspecialchars: Convert special characters into HTML format.
13.htmlentities: Convert all characters into HTML strings.
14.implode: Convert array into string.
15.1join: Convert array into string.
16.ltrim: Remove continuous whitespace.
17.md5: Calculate the MD5 hash of a string.
18.nl2br: Convert newline characters to
.
19.Ord: Returns the ordinal value of the character.
20.parse_str: Parse query string into variables.
21.print: Output string.
22.printf: Output formatted string.
23.quoted_printable_decode: Convert qp encoded string into 8-bit string.
24.QuoteMeta: Add quote symbols.
25.rawurldecode: Revert from URL-specific format string to ordinary string.
26.rawurlencode: Encode string into URL-specific format.
27.setlocale: Configure localization information.
28.similar_text: Calculate string similarity.
29.soundex: Calculate the pronunciation value of the string
30.sprintf: Format the string.
31.strchr: Find the first appearing character.
32.strcmp: String comparison.
33.strcspn: The length of different strings.
34.strip_tags: Remove HTML and PHP tags.
35.strlen: Get the string length.
36.strrpos: Find the last occurrence of a character in a string.
37.strpos: Find the first occurrence of a character in a string.
38.strrchr: Get the string starting from the last occurrence of a character.
39.strrev: Reverse a string.
40.strspn: Find the number of times a string falls within the mask of another string.
41.strstr: Returns the string from the beginning to the end of a string in the string.
42.strtok: Cut the string.
43.strtolower: Convert all strings to lowercase.
44.strtoupper: Convert the string to uppercase.
45.str_replace: String replacement.
46.strtr: Convert certain characters.
47.substr: Get part of the string.
48.trim: Trim the spaces at the beginning and end of the string.
49.ucfirst: Change the first character of the string to uppercase.
50.ucwords: Capitalize the first letter of each word in the string.
51.StripSlashes: Remove backslash characters.

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