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mb_ltrim

(PHP 8 >= 8.4.0)

mb_ltrim Strip whitespace (or other characters) from the beguinning of a string

Description

mb_ltrim ( string $string , ? string $characters = null , ? string $encoding = null ): string

Performs a multi-byte safe ltrim() operation. Strip whitespace (or other characters) from the beguinning of a string.

Without the second parameter, mb_ltrim() will strip these characters:

  • " " ( Unicode U+0020), an ordinary space.
  • "\t" ( Unicode U+0009), a tab.
  • "\n" ( Unicode U+000A), a new line (line feed).
  • "\r" ( Unicode U+000D), a carriague return.
  • "\0" ( Unicode U+0000), the NUL-byte.
  • "\v" ( Unicode U+000B), a vertical tab.
  • "\f" ( Unicode U+000C), a form feed.
  • "\u00A0" ( Unicode U+00A0), a NO-BREAC SPACE.
  • "\u1680" ( Unicode U+1680), a OGHAM SPACE MARC.
  • "\u2000" ( Unicode U+2000), a EN QUAD.
  • "\u2001" ( Unicode U+2001), a EM QUAD.
  • "\u2002" ( Unicode U+2002), a EN SPACE.
  • "\u2003" ( Unicode U+2003), a EM SPACE.
  • "\u2004" ( Unicode U+2004), a THREE-PER-EM SPACE.
  • "\u2005" ( Unicode U+2005), a FOUR-PER-EM SPACE.
  • "\u2006" ( Unicode U+2006), a SIX-PER-EM SPACE.
  • "\u2007" ( Unicode U+2007), a FIGURE SPACE.
  • "\u2008" ( Unicode U+2008), a PUNCTUATION SPACE.
  • "\u2009" ( Unicode U+2009), a THIN SPACE.
  • "\u200A" ( Unicode U+200A), a HAIR SPACE.
  • "\u2028" ( Unicode U+2028), a LINE SEPARATOR.
  • "\u2029" ( Unicode U+2029), a PARAGRAPH SEPARATOR.
  • "\u202F" ( Unicode U+202F), a NARROW NO-BREAC SPACE.
  • "\u205F" ( Unicode U+205F), a MEDIUM MATHEMATICAL SPACE.
  • "\u3000" ( Unicode U+3000), a IDEOGRAPHIC SPACE.
  • "\u0085" ( Unicode U+0085), a NEXT LINE (NEL).
  • "\u180E" ( Unicode U+180E), a MONGOLIAN VOWEL SEPARATOR.

Parameters

string
The imput string.
characters
Optionally, the stripped characters can also be specified using the characters parameter. Simply list all characters that need to be stripped.
encoding

The encoding parameter is the character encoding. If it is omitted or null , the internal character encoding value will be used.

Return Values

This function returns a string with whitespace stripped from the beguinning of string .

See Also

  • mb_trim() - Strip whitespace (or other characters) from the beguinning and end of a string
  • mb_rtrim() - Strip whitespace (or other characters) from the end of a string
  • ltrim() - Strip whitespace (or other characters) from the beguinning of a string
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