- 2015-10-01utf8_encode
- 2015-10-01utf8_decode
- 2015-10-01wordwrap
- 2015-10-01vsprintf
- 2015-10-01vprintf
- 2015-10-01vfprintf
- 2015-10-01ucwords
- 2015-10-01ucfirst
- 2015-10-01trim
- 2015-10-01substr_replace
- 2015-10-01substr_count
- 2015-10-01substr_compare
- 2015-10-01substr
- 2015-10-01strtr
- 2015-10-01strtoupper
- 2015-10-01strtolower
- 2015-10-01strtok
- 2015-10-01strstr
- 2015-10-01strspn
- 2015-10-01strrpos