java软件工程师学php-9.字符串处理

java程序员学php -9. 字符串处理

PHP JAVA标准库或commons-lang的StringUtils
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trim($str) --------- str.trim()
strtoupper($str)----- str.toUpperCase()
ucfirst($str) ------- StringUtils.capitalize(str)

explode(';',$str) ---- StringUtils.split(str, ";")
join(';', $str) --- StringUtils.join(str, ";")


substr($str, 3) --- str.substring(3)
substr($str, -4) --- 无

$str1 == $str2 --- str1.equals(str2)

strlen($str) --- str.length()


strstr($str,'o') --- str.contains("o")
stristr($str,'o') --- str.contains("o") || str.contains("O")
strpos($str, 'o') --- str.indexOf('o')
strrpos($str,'o') --- str.lastIndexOf('o')


str_replace($str, --- StringUtils.replace("str", "abc", "ABC")
'abc', 'ABC')
str_replace( --- 无
$str_array,
$target_array,
$replacement_array)