Trong PHP, gọi lại là một đối tượng hàm/tham chiếu với loại có thể gọi được. Một biến gọi lại/có thể gọi được có thể hoạt động như một hàm, phương thức đối tượng và phương thức lớp tĩnh. Có nhiều cách khác nhau để thực hiện gọi lại. Một số trong số họ được thảo luận dưới đây
gọi lại tiêu chuẩn. Trong PHP, các hàm có thể được gọi bằng hàm call_user_func[] trong đó đối số là tên chuỗi của hàm được gọi
Thí dụ
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks11
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks13
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks14
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks0
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks1
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks3
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks5
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks8
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks9
Geeksforgeeks invoke Geeksforgeeks0
Geeksforgeeks invoke Geeksforgeeks1
Geeksforgeeks invoke Geeksforgeeks2
đầu ra.
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2
Gọi lại phương thức lớp tĩnh. Các phương thức lớp tĩnh có thể được gọi bằng cách sử dụng call_user_func[] trong đó đối số là một mảng chứa tên chuỗi của lớp và phương thức bên trong nó sẽ được gọi
Thí dụ
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks11
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks13
Geeksforgeeks invoke Geeksforgeeks6
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks invoke Geeksforgeeks8
Geeksforgeeks invoke Geeksforgeeks9
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks60
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2____163
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks65
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks0
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks1
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks68
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks3
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks6
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks invoke Geeksforgeeks9
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks118
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks60
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks0
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks1
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks68
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks3
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks5
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks9
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks138
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks139
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks140
Geeksforgeeks invoke Geeksforgeeks0
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks142
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks9
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks137
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks138
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks140
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks124
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks142
Geeksforgeeks invoke Geeksforgeeks2
đầu ra.
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks
Gọi lại phương thức đối tượng. Các phương thức đối tượng có thể được gọi bằng cách sử dụng call_user_func[] trong đó đối số là một mảng chứa biến đối tượng và tên chuỗi của phương thức được gọi. Phương thức đối tượng cũng có thể được gọi nếu chúng được tạo ra bằng cách sử dụng định nghĩa hàm __invoke[]. Trong trường hợp này, đối số của hàm call_user_func[] chính là biến đối tượng
Thí dụ
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks11
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks13
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks160
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks invoke Geeksforgeeks8
Geeksforgeeks invoke Geeksforgeeks9
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks60
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2____116
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks0
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks1
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks68
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks4
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2____06
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2____163
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks0
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks9
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks137
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks138
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks24
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks140
Geeksforgeeks invoke Geeksforgeeks0
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks142
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks38
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks9
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks24
Geeksforgeeks invoke Geeksforgeeks1
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks43
đầu ra.
Geeksforgeeks invoke Geeksforgeeks
gọi lại đóng cửa. Các hàm đóng có thể được gọi bằng cách thực hiện các lệnh gọi tiêu chuẩn hoặc ánh xạ hàm đóng tới mảng các đối số hợp lệ được cung cấp cho hàm đóng bằng cách sử dụng hàm array_map[] trong đó các đối số là hàm đóng và một mảng các đối số hợp lệ của nó
Thí dụ
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks11
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks13
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks25
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks0
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks138
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks54
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks55
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks2
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks3
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks5
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks12
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Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks65
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks25
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks137
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks138
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks69
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks140
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks71
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks140
Geeksforgeeks Article Geeksforgeeks Article Parent Geeksforgeeks73
Geeksforgeeks invoke Geeksforgeeks1