함수 index()

index()

array_search()

1 PHP

PHP array_search() 문서를 참고하십시오.

$fruits = ['Banana', 'Orange', 'Apple', 'Orange', 'Mango', 'Orange'];
var_dump( array_search('Orange', $fruits) );
# int(1)
var_dump( array_search('Pineapple', $fruits) );
# bool(false)

2 Python

fruits = ['Banana', 'Orange', 'Apple', 'Orange', 'Mango', 'Orange']
print( fruits.index('Orange') )
# 1
print( fruits.index('Orange', 4) )
# 5
print( fruits.index('Orange', 2, 6) )
# 3

fruits = ['Banana', 'Orange', 'Apple', 'Mango']
print( fruits.index('Pineapple') )
# ValueError: 'Pineapple' is not in list

3 같이 보기

• 함수 indexOf()
• 함수 count()