Vectores o arreglos en php
Quiz
•
Other
•
1st - 5th Grade
•
Practice Problem
•
Hard
Andres Torres
Used 3+ times
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10 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
¿Qué es un vector en php?
Se representan con un signo de dólar seguido por el nombre de la variable.
Los vectores son los arrays que sólo contienen una dimensión (un índice).
Ninguna de las anteriores
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
¿Qué es un índice en un array o vector en php?
Cuenta todos los elementos en un array o algo de un objeto.
Es un lugar en el que almacenaremos datos, de la misma manera que en las variables, pero con la posibilidad de almacenar varios datos (valores) ordenados en distintos compartimientos, en lugar de un solo dato, como en el caso de una variable
Un array contiene una lista de valores asociados, será el identificativo de un valor en concreto
3.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Si el vector ya contiene índices enteros y se omite alguno, el siguiente generado será el mayor índice entero existente +1
Falso
Verdadero
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Si definimos dos índices enteros iguales, el último definido sobrescribirá al siguiente
Falso
Verdadero
5.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
las funciones count y sizeof son exactamente iguales
Falso
Verdadero
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Un índice de un vector comienza por el número 1
Falso
Verdadero
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
¿Cuál vector esta declarado correctamente?
$vector=arreglo{ };
$arreglo=vector;
$vector=arreglo();
$vector=array();
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